text: # -*- coding: utf-8 -*-
  
  # PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
  # https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
  
  from ccxt.base.exchange import Exchange
  import math
  import json
  from ccxt.base.errors import ExchangeError
  from ccxt.base.errors import AuthenticationError
  from ccxt.base.errors import PermissionDenied
  from ccxt.base.errors import AccountSuspended
  from ccxt.base.errors import ArgumentsRequired
  from ccxt.base.errors import BadRequest
  from ccxt.base.errors import BadSymbol
  from ccxt.base.errors import InsufficientFunds
  from ccxt.base.errors import InvalidOrder
  from ccxt.base.errors import OrderNotFound
  from ccxt.base.errors import OrderImmediatelyFillable
  from ccxt.base.errors import NotSupported
  from ccxt.base.errors import DDoSProtection
  from ccxt.base.errors import RateLimitExceeded
  from ccxt.base.errors import ExchangeNotAvailable
  from ccxt.base.errors import InvalidNonce
  from ccxt.base.decimal_to_precision import TRUNCATE
  
  
  class binance(Exchange):
  
      def describe(self):
          return self.deep_extend(super(binance, self).describe(), {
              'id': 'binance',
              'name': 'Binance',
              'countries': ['JP', 'MT'],  # Japan, Malta
              'rateLimit': 500,
              'certified': True,
              'pro': True,
              # new metainfo interface
              'has': {
                  'cancelAllOrders': True,
                  'cancelOrder': True,
                  'CORS': False,
                  'createOrder': True,
                  'fetchCurrencies': True,
                  'fetchBalance': True,
                  'fetchBidsAsks': True,
                  'fetchClosedOrders': 'emulated',
                  'fetchDepositAddress': True,
                  'fetchDeposits': True,
                  'fetchFundingFees': True,
                  'fetchMarkets': True,
                  'fetchMyTrades': True,
                  'fetchOHLCV': True,
                  'fetchOpenOrders': True,
                  'fetchOrder': True,
                  'fetchOrders': True,
                  'fetchOrderBook': True,
                  'fetchStatus': True,
                  'fetchTicker': True,
                  'fetchTickers': True,
                  'fetchTime': True,
                  'fetchTrades': True,
                  'fetchTradingFee': True,
                  'fetchTradingFees': True,
                  'fetchTransactions': False,
                  'fetchWithdrawals': True,
                  'withdraw': True,
                  'transfer': True,
                  'fetchTransfers': True,
              },
              'timeframes': {
                  '1m': '1m',
                  '3m': '3m',
                  '5m': '5m',
                  '15m': '15m',
                  '30m': '30m',
                  '1h': '1h',
                  '2h': '2h',
                  '4h': '4h',
                  '6h': '6h',
                  '8h': '8h',
                  '12h': '12h',
                  '1d': '1d',
                  '3d': '3d',
                  '1w': '1w',
                  '1M': '1M',
              },
              'urls': {
                  'logo': 'https://user-images.githubusercontent.com/1294454/29604020-d5483cdc-87ee-11e7-94c7-d1a8d9169293.jpg',
                  'test': {
                      'dapiPublic': 'https://testnet.binancefuture.com/dapi/v1',
                      'dapiPrivate': 'https://testnet.binancefuture.com/dapi/v1',
                      'fapiPublic': 'https://testnet.binancefuture.com/fapi/v1',
                      'fapiPrivate': 'https://testnet.binancefuture.com/fapi/v1',
                      'fapiPrivateV2': 'https://testnet.binancefuture.com/fapi/v2',
                      'public': 'https://testnet.binance.vision/api/v3',
                      'private': 'https://testnet.binance.vision/api/v3',
                      'v3': 'https://testnet.binance.vision/api/v3',
                      'v1': 'https://testnet.binance.vision/api/v1',
                  },
                  'api': {
                      'wapi': 'https://api.binance.com/wapi/v3',
                      'sapi': 'https://api.binance.com/sapi/v1',
                      'dapiPublic': 'https://dapi.binance.com/dapi/v1',
                      'dapiPrivate': 'https://dapi.binance.com/dapi/v1',
                      'dapiData': 'https://dapi.binance.com/futures/data',
                      'fapiPublic': 'https://fapi.binance.com/fapi/v1',
                      'fapiPrivate': 'https://fapi.binance.com/fapi/v1',
                      'fapiData': 'https://fapi.binance.com/futures/data',
                      'fapiPrivateV2': 'https://fapi.binance.com/fapi/v2',
                      'public': 'https://api.binance.com/api/v3',
                      'private': 'https://api.binance.com/api/v3',
                      'v3': 'https://api.binance.com/api/v3',
                      'v1': 'https://api.binance.com/api/v1',
                  },
                  'www': 'https://www.binance.com',
                  'referral': 'https://www.binance.com/?ref=10205187',
                  'doc': [
                      'https://binance-docs.github.io/apidocs/spot/en',
                  ],
                  'api_management': 'https://www.binance.com/en/usercenter/settings/api-management',
                  'fees': 'https://www.binance.com/en/fee/schedule',
              },
              'api': {
                  # the API structure below will need 3-layer apidefs
                  'sapi': {
                      'get': [
                          'accountSnapshot',
                          # these endpoints require self.apiKey
                          'margin/asset',
                          'margin/pair',
                          'margin/allAssets',
                          'margin/allPairs',
                          'margin/priceIndex',
                          # these endpoints require self.apiKey + self.secret
                          'asset/assetDividend',
                          'asset/transfer',
                          'margin/loan',
                          'margin/repay',
                          'margin/account',
                          'margin/transfer',
                          'margin/interestHistory',
                          'margin/forceLiquidationRec',
                          'margin/order',
                          'margin/openOrders',
                          'margin/allOrders',
                          'margin/myTrades',
                          'margin/maxBorrowable',
                          'margin/maxTransferable',
                          'margin/isolated/transfer',
                          'margin/isolated/account',
                          'margin/isolated/pair',
                          'margin/isolated/allPairs',
                          'futures/transfer',
                          'futures/loan/borrow/history',
                          'futures/loan/repay/history',
                          'futures/loan/wallet',
                          'futures/loan/configs',
                          'futures/loan/calcAdjustLevel',
                          'futures/loan/calcMaxAdjustAmount',
                          'futures/loan/adjustCollateral/history',
                          'futures/loan/liquidationHistory',
                          # https://binance-docs.github.io/apidocs/spot/en/#withdraw-sapi
                          'capital/config/getall',  # get networks for withdrawing USDT ERC20 vs USDT Omni
                          'capital/deposit/address',
                          'capital/deposit/hisrec',
                          'capital/deposit/subAddress',
                          'capital/deposit/subHisrec',
                          'capital/withdraw/history',
                          'sub-account/futures/account',
                          'sub-account/futures/accountSummary',
                          'sub-account/futures/positionRisk',
                          'sub-account/futures/internalTransfer',
                          'sub-account/margin/account',
                          'sub-account/margin/accountSummary',
                          'sub-account/spotSummary',
                          'sub-account/status',
                          'sub-account/transfer/subUserHistory',
                          'sub-account/universalTransfer',
                          # lending endpoints
                          'lending/daily/product/list',
                          'lending/daily/userLeftQuota',
                          'lending/daily/userRedemptionQuota',
                          'lending/daily/token/position',
                          'lending/union/account',
                          'lending/union/purchaseRecord',
                          'lending/union/redemptionRecord',
                          'lending/union/interestHistory',
                          'lending/project/list',
                          'lending/project/position/list',
                          # mining endpoints
                          'mining/pub/algoList',
                          'mining/pub/coinList',
                          'mining/worker/detail',
                          'mining/worker/list',
                          'mining/payment/list',
                          'mining/statistics/user/status',
                          'mining/statistics/user/list',
                          # liquid swap endpoints
                          'bswap/pools',
                          'bswap/liquidity',
                          'bswap/liquidityOps',
                          'bswap/quote',
                          'bswap/swap',
                          # leveraged token endpoints
                          'blvt/tokenInfo',
                          'blvt/subscribe/record',
                          'blvt/redeem/record',
                          'blvt/userLimit',
                          # broker api
                          'apiReferral/ifNewUser',
                          'apiReferral/customization',
                          'apiReferral/userCustomization',
                          'apiReferral/rebate/recentRecord',
                          'apiReferral/rebate/historicalRecord',
                          'apiReferral/kickback/recentRecord',
                          'apiReferral/kickback/historicalRecord',
                          # brokerage API
                          'broker/subAccountApi',
                          'broker/subAccount',
                          'broker/subAccountApi/commission/futures',
                          'broker/subAccountApi/commission/coinFutures',
                          'broker/info',
                          'broker/transfer',
                          'broker/transfer/futures',
                          'broker/rebate/recentRecord',
                          'broker/rebate/historicalRecord',
                          'broker/subAccount/bnbBurn/status',
                          'broker/subAccount/depositHist',
                          'broker/subAccount/spotSummary',
                          'broker/subAccount/marginSummary',
                          'broker/subAccount/futuresSummary',
                          'broker/rebate/futures/recentRecord',
                          'broker/subAccountApi/ipRestriction',
                          'broker/universalTransfer',
                          # v2 not supported yet
                          # GET /sapi/v2/broker/subAccount/futuresSummary
                      ],
                      'post': [
                          'asset/dust',
                          'asset/transfer',
                          'account/disableFastWithdrawSwitch',
                          'account/enableFastWithdrawSwitch',
                          'capital/withdraw/apply',
                          'margin/transfer',
                          'margin/loan',
                          'margin/repay',
                          'margin/order',
                          'margin/isolated/create',
                          'margin/isolated/transfer',
                          'sub-account/margin/transfer',
                          'sub-account/margin/enable',
                          'sub-account/margin/enable',
                          'sub-account/futures/enable',
                          'sub-account/futures/transfer',
                          'sub-account/futures/internalTransfer',
                          'sub-account/transfer/subToSub',
                          'sub-account/transfer/subToMaster',
                          'sub-account/universalTransfer',
                          'userDataStream',
                          'userDataStream/isolated',
                          'futures/transfer',
                          'futures/loan/borrow',
                          'futures/loan/repay',
                          'futures/loan/adjustCollateral',
                          # lending
                          'lending/customizedFixed/purchase',
                          'lending/daily/purchase',
                          'lending/daily/redeem',
                          # liquid swap endpoints
                          'bswap/liquidityAdd',
                          'bswap/liquidityRemove',
                          'bswap/swap',
                          # leveraged token endpoints
                          'blvt/subscribe',
                          'blvt/redeem',
                          # brokerage API
                          'apiReferral/customization',
                          'apiReferral/userCustomization',
                          'apiReferral/rebate/historicalRecord',
                          'apiReferral/kickback/historicalRecord',
                          'broker/subAccount',
                          'broker/subAccount/margin',
                          'broker/subAccount/futures',
                          'broker/subAccountApi',
                          'broker/subAccountApi/permission',
                          'broker/subAccountApi/commission',
                          'broker/subAccountApi/commission/futures',
                          'broker/subAccountApi/commission/coinFutures',
                          'broker/transfer',
                          'broker/transfer/futures',
                          'broker/rebate/historicalRecord',
                          'broker/subAccount/bnbBurn/spot',
                          'broker/subAccount/bnbBurn/marginInterest',
                          'broker/subAccount/blvt',
                          'broker/subAccountApi/ipRestriction',
                          'broker/subAccountApi/ipRestriction/ipList',
                          'broker/universalTransfer',
                          'broker/subAccountApi/permission/universalTransfer',
                          'broker/subAccountApi/permission/vanillaOptions',
                      ],
                      'put': [
                          'userDataStream',
                          'userDataStream/isolated',
                      ],
                      'delete': [
                          'margin/openOrders',
                          'margin/order',
                          'userDataStream',
                          'userDataStream/isolated',
                          # brokerage API
                          'broker/subAccountApi',
                          'broker/subAccountApi/ipRestriction/ipList',
                      ],
                  },
                  'wapi': {
                      'post': [
                          'withdraw',
                          'sub-account/transfer',
                      ],
                      'get': [
                          'depositHistory',
                          'withdrawHistory',
                          'depositAddress',
                          'accountStatus',
                          'systemStatus',
                          'apiTradingStatus',
                          'userAssetDribbletLog',
                          'tradeFee',
                          'assetDetail',
                          'sub-account/list',
                          'sub-account/transfer/history',
                          'sub-account/assets',
                      ],
                  },
                  'dapiPublic': {
                      'get': [
                          'ping',
                          'time',
                          'exchangeInfo',
                          'depth',
                          'trades',
                          'historicalTrades',
                          'aggTrades',
                          'premiumIndex',
                          'fundingRate',
                          'klines',
                          'continuousKlines',
                          'indexPriceKlines',
                          'markPriceKlines',
                          'ticker/24hr',
                          'ticker/price',
                          'ticker/bookTicker',
                          'allForceOrders',
                          'openInterest',
                      ],
                  },
                  'dapiData': {
                      'get': [
                          'openInterestHist',
                          'topLongShortAccountRatio',
                          'topLongShortPositionRatio',
                          'globalLongShortAccountRatio',
                          'takerBuySellVol',
                          'basis',
                      ],
                  },
                  'dapiPrivate': {
                      'get': [
                          'positionSide/dual',
                          'order',
                          'openOrder',
                          'openOrders',
                          'allOrders',
                          'balance',
                          'account',
                          'positionMargin/history',
                          'positionRisk',
                          'userTrades',
                          'income',
                          'leverageBracket',
                          'forceOrders',
                          'adlQuantile',
                      ],
                      'post': [
                          'positionSide/dual',
                          'order',
                          'batchOrders',
                          'countdownCancelAll',
                          'leverage',
                          'marginType',
                          'positionMargin',
                          'listenKey',
                      ],
                      'put': [
                          'listenKey',
                      ],
                      'delete': [
                          'order',
                          'allOpenOrders',
                          'batchOrders',
                          'listenKey',
                      ],
                  },
                  'fapiPublic': {
                      'get': [
                          'ping',
                          'time',
                          'exchangeInfo',
                          'depth',
                          'trades',
                          'historicalTrades',
                          'aggTrades',
                          'klines',
                          'continuousKlines',
                          'fundingRate',
                          'premiumIndex',
                          'ticker/24hr',
                          'ticker/price',
                          'ticker/bookTicker',
                          'allForceOrders',
                          'openInterest',
                          'indexInfo',
                      ],
                  },
                  'fapiData': {
                      'get': [
                          'openInterestHist',
                          'topLongShortAccountRatio',
                          'topLongShortPositionRatio',
                          'globalLongShortAccountRatio',
                          'takerlongshortRatio',
                      ],
                  },
                  'fapiPrivate': {
                      'get': [
                          'allForceOrders',
                          'allOrders',
                          'openOrder',
                          'openOrders',
                          'order',
                          'account',
                          'balance',
                          'leverageBracket',
                          'positionMargin/history',
                          'positionRisk',
                          'positionSide/dual',
                          'userTrades',
                          'income',
                          'commissionRate',
                          'apiTradingStatus',
                          # broker endpoints
                          'apiReferral/ifNewUser',
                          'apiReferral/customization',
                          'apiReferral/userCustomization',
                          'apiReferral/traderNum',
                          'apiReferral/overview',
                          'apiReferral/tradeVol',
                          'apiReferral/rebateVol',
                          'apiReferral/traderSummary',
                      ],
                      'post': [
                          'batchOrders',
                          'positionSide/dual',
                          'positionMargin',
                          'marginType',
                          'order',
                          'leverage',
                          'listenKey',
                          'countdownCancelAll',
                          # broker endpoints
                          'apiReferral/customization',
                          'apiReferral/userCustomization',
                      ],
                      'put': [
                          'listenKey',
                      ],
                      'delete': [
                          'batchOrders',
                          'order',
                          'allOpenOrders',
                          'listenKey',
                      ],
                  },
                  'fapiPrivateV2': {
                      'get': [
                          'account',
                          'balance',
                          'positionRisk',
                      ],
                  },
                  'v3': {
                      'get': [
                          'ticker/price',
                          'ticker/bookTicker',
                      ],
                  },
                  'public': {
                      'get': [
                          'ping',
                          'time',
                          'depth',
                          'trades',
                          'aggTrades',
                          'historicalTrades',
                          'klines',
                          'ticker/24hr',
                          'ticker/price',
                          'ticker/bookTicker',
                          'exchangeInfo',
                      ],
                      'put': ['userDataStream'],
                      'post': ['userDataStream'],
                      'delete': ['userDataStream'],
                  },
                  'private': {
                      'get': [
                          'allOrderList',  # oco
                          'openOrderList',  # oco
                          'orderList',  # oco
                          'order',
                          'openOrders',
                          'allOrders',
                          'account',
                          'myTrades',
                      ],
                      'post': [
                          'order/oco',
                          'order',
                          'order/test',
                      ],
                      'delete': [
                          'openOrders',  # added on 2020-04-25 for canceling all open orders per symbol
                          'orderList',  # oco
                          'order',
                      ],
                  },
              },
              'fees': {
                  'trading': {
                      'feeSide': 'get',
                      'tierBased': False,
                      'percentage': True,
                      'taker': 0.001,
                      'maker': 0.001,
                  },
              },
              'commonCurrencies': {
                  'BCC': 'BCC',  # kept for backward-compatibility https://github.com/ccxt/ccxt/issues/4848
                  'YOYO': 'YOYOW',
              },
              # exchange-specific options
              'options': {
                  'fetchCurrencies': False,  # self is a private call and it requires API keys
                  # 'fetchTradesMethod': 'publicGetAggTrades',  # publicGetTrades, publicGetHistoricalTrades
                  'defaultTimeInForce': 'GTC',  # 'GTC' = Good To Cancel(default), 'IOC' = Immediate Or Cancel
                  'defaultType': 'spot',  # 'spot', 'future', 'margin', 'delivery'
                  'hasAlreadyAuthenticatedSuccessfully': False,
                  'warnOnFetchOpenOrdersWithoutSymbol': True,
                  'recvWindow': 5 * 1000,  # 5 sec, binance default
                  'timeDifference': 0,  # the difference between system clock and Binance clock
                  'adjustForTimeDifference': False,  # controls the adjustment logic upon instantiation
                  'parseOrderToPrecision': False,  # force amounts and costs in parseOrder to precision
                  'newOrderRespType': {
                      'market': 'FULL',  # 'ACK' for order id, 'RESULT' for full order or 'FULL' for order with fills
                      'limit': 'FULL',  # we change it from 'ACK' by default to 'FULL'(returns immediately if limit is not hit)
                  },
                  'quoteOrderQty': True,  # whether market orders support amounts in quote currency
                  'broker': {
                      'spot': 'x-R4BD3S82',
                      'margin': 'x-R4BD3S82',
                      'future': 'x-xcKtGhcu',
                      'delivery': 'x-xcKtGhcu',
                  },
                  'fetchPositions': {
                      'future': 'fapiPrivateV2GetAccount',  # 'fapiPrivateGetPositionRisk'
                      'delivery': 'dapiPrivateGetAccount',  # 'dapiPrivateGetPositionRisk'
                  },
                  'accountsByType': {
                      'main': 'MAIN',
                      'spot': 'MAIN',
                      'margin': 'MARGIN',
                      'future': 'UMFUTURE',
                      'delivery': 'CMFUTURE',
                      'mining': 'MINING',
                  },
                  'typesByAccount': {
                      'MAIN': 'spot',
                      'MARGIN': 'margin',
                      'UMFUTURE': 'future',
                      'CMFUTURE': 'delivery',
                      'MINING': 'mining',
                  },
              },
              # https://binance-docs.github.io/apidocs/spot/en/#error-codes-2
              'exceptions': {
                  'System abnormality': ExchangeError,  # {"code":-1000,"msg":"System abnormality"}
                  'You are not authorized to execute self request.': PermissionDenied,  # {"msg":"You are not authorized to execute self request."}
                  'API key does not exist': AuthenticationError,
                  'Order would trigger immediately.': OrderImmediatelyFillable,
                  'Stop price would trigger immediately.': OrderImmediatelyFillable,  # {"code":-2010,"msg":"Stop price would trigger immediately."}
                  'Order would immediately match and take.': OrderImmediatelyFillable,  # {"code":-2010,"msg":"Order would immediately match and take."}
                  'Account has insufficient balance for requested action.': InsufficientFunds,
                  'Rest API trading is not enabled.': ExchangeNotAvailable,
                  "You don't have permission.": PermissionDenied,  # {"msg":"You don't have permission.","success":false}
                  'Market is closed.': ExchangeNotAvailable,  # {"code":-1013,"msg":"Market is closed."}
                  'Too many requests.': DDoSProtection,  # {"msg":"Too many requests. Please try again later.","success":false}
                  '-1000': ExchangeNotAvailable,  # {"code":-1000,"msg":"An unknown error occured while processing the request."}
                  '-1001': ExchangeNotAvailable,  # 'Internal error; unable to process your request. Please try again.'
                  '-1002': AuthenticationError,  # 'You are not authorized to execute self request.'
                  '-1003': RateLimitExceeded,  # {"code":-1003,"msg":"Too much request weight used, current limit is 1200 request weight per 1 MINUTE. Please use the websocket for live updates to avoid polling the API."}
                  '-1013': InvalidOrder,  # createOrder -> 'invalid quantity'/'invalid price'/MIN_NOTIONAL
                  '-1015': RateLimitExceeded,  # 'Too many new orders; current limit is %s orders per %s.'
                  '-1016': ExchangeNotAvailable,  # 'This service is no longer available.',
                  '-1020': BadRequest,  # 'This operation is not supported.'
                  '-1021': InvalidNonce,  # 'your time is ahead of server'
                  '-1022': AuthenticationError,  # {"code":-1022,"msg":"Signature for self request is not valid."}
                  '-1100': BadRequest,  # createOrder(symbol, 1, asdf) -> 'Illegal characters found in parameter 'price'
                  '-1101': BadRequest,  # Too many parameters; expected %s and received %s.
                  '-1102': BadRequest,  # Param %s or %s must be sent, but both were empty
                  '-1103': BadRequest,  # An unknown parameter was sent.
                  '-1104': BadRequest,  # Not all sent parameters were read, read 8 parameters but was sent 9
                  '-1105': BadRequest,  # Parameter %s was empty.
                  '-1106': BadRequest,  # Parameter %s sent when not required.
                  '-1111': BadRequest,  # Precision is over the maximum defined for self asset.
                  '-1112': InvalidOrder,  # No orders on book for symbol.
                  '-1114': BadRequest,  # TimeInForce parameter sent when not required.
                  '-1115': BadRequest,  # Invalid timeInForce.
                  '-1116': BadRequest,  # Invalid orderType.
                  '-1117': BadRequest,  # Invalid side.
                  '-1118': BadRequest,  # New client order ID was empty.
                  '-1119': BadRequest,  # Original client order ID was empty.
                  '-1120': BadRequest,  # Invalid interval.
                  '-1121': BadSymbol,  # Invalid symbol.
                  '-1125': AuthenticationError,  # This listenKey does not exist.
                  '-1127': BadRequest,  # More than %s hours between startTime and endTime.
                  '-1128': BadRequest,  # {"code":-1128,"msg":"Combination of optional parameters invalid."}
                  '-1130': BadRequest,  # Data sent for paramter %s is not valid.
                  '-1131': BadRequest,  # recvWindow must be less than 60000
                  '-2010': ExchangeError,  # generic error code for createOrder -> 'Account has insufficient balance for requested action.', {"code":-2010,"msg":"Rest API trading is not enabled."}, etc...
                  '-2011': OrderNotFound,  # cancelOrder(1, 'BTC/USDT') -> 'UNKNOWN_ORDER'
                  '-2013': OrderNotFound,  # fetchOrder(1, 'BTC/USDT') -> 'Order does not exist'
                  '-2014': AuthenticationError,  # {"code":-2014, "msg": "API-key format invalid."}
                  '-2015': AuthenticationError,  # "Invalid API-key, IP, or permissions for action."
                  '-2019': InsufficientFunds,  # {"code":-2019,"msg":"Margin is insufficient."}
                  '-3005': InsufficientFunds,  # {"code":-3005,"msg":"Transferring out not allowed. Transfer out amount exceeds max amount."}
                  '-3008': InsufficientFunds,  # {"code":-3008,"msg":"Borrow not allowed. Your borrow amount has exceed maximum borrow amount."}
                  '-3010': ExchangeError,  # {"code":-3010,"msg":"Repay not allowed. Repay amount exceeds borrow amount."}
                  '-3022': AccountSuspended,  # You account's trading is banned.
                  '-4028': BadRequest,  # {"code":-4028,"msg":"Leverage 100 is not valid"}
                  '-3020': InsufficientFunds,  # {"code":-3020,"msg":"Transfer out amount exceeds max amount."}
                  '-3041': InsufficientFunds,  # {"code":-3041,"msg":"Balance is not enough"}
                  '-5013': InsufficientFunds,  # Asset transfer failed: insufficient balance"
              },
          })
  
      def currency_to_precision(self, currency, fee):
          return self.number_to_string(fee)
  
      def nonce(self):
          return self.milliseconds() - self.options['timeDifference']
  
      def fetch_time(self, params={}):
          type = self.safe_string_2(self.options, 'fetchTime', 'defaultType', 'spot')
          method = 'publicGetTime'
          if type == 'future':
              method = 'fapiPublicGetTime'
          elif type == 'delivery':
              method = 'dapiPublicGetTime'
          response = getattr(self, method)(params)
          return self.safe_integer(response, 'serverTime')
  
      def load_time_difference(self, params={}):
          serverTime = self.fetch_time(params)
          after = self.milliseconds()
          self.options['timeDifference'] = after - serverTime
          return self.options['timeDifference']
  
      def fetch_currencies(self, params={}):
          fetchCurrenciesEnabled = self.safe_value(self.options, 'fetchCurrencies')
          if not fetchCurrenciesEnabled:
              return None
          # self endpoint requires authentication
          # while fetchCurrencies is a public API method by design
          # therefore we check the keys here
          # and fallback to generating the currencies from the markets
          if not self.check_required_credentials(False):
              return None
          # sandbox/testnet does not support sapi endpoints
          apiBackup = self.safe_string(self.urls, 'apiBackup')
          if apiBackup is not None:
              return None
          response = self.sapiGetCapitalConfigGetall(params)
          result = {}
          for i in range(0, len(response)):
              #
              #     {
              #         coin: 'LINK',
              #         depositAllEnable: True,
              #         withdrawAllEnable: True,
              #         name: 'ChainLink',
              #         free: '0.06168',
              #         locked: '0',
              #         freeze: '0',
              #         withdrawing: '0',
              #         ipoing: '0',
              #         ipoable: '0',
              #         storage: '0',
              #         isLegalMoney: False,
              #         trading: True,
              #         networkList: [
              #             {
              #                 network: 'BNB',
              #                 coin: 'LINK',
              #                 withdrawIntegerMultiple: '0',
              #                 isDefault: False,
              #                 depositEnable: True,
              #                 withdrawEnable: True,
              #                 depositDesc: '',
              #                 withdrawDesc: '',
              #                 specialTips: 'Both a MEMO and an Address are required to successfully deposit your LINK BEP2 tokens to Binance.',
              #                 name: 'BEP2',
              #                 resetAddressStatus: False,
              #                 addressRegex: '^(bnb1)[0-9a-z]{38}$',
              #                 memoRegex: '^[0-9A-Za-z\\-_]{1,120}$',
              #                 withdrawFee: '0.002',
              #                 withdrawMin: '0.01',
              #                 withdrawMax: '9999999',
              #                 minConfirm: 1,
              #                 unLockConfirm: 0
              #             },
              #             {
              #                 network: 'BSC',
              #                 coin: 'LINK',
              #                 withdrawIntegerMultiple: '0.00000001',
              #                 isDefault: False,
              #                 depositEnable: True,
              #                 withdrawEnable: True,
              #                 depositDesc: '',
              #                 withdrawDesc: '',
              #                 specialTips: '',
              #                 name: 'BEP20(BSC)',
              #                 resetAddressStatus: False,
              #                 addressRegex: '^(0x)[0-9A-Fa-f]{40}$',
              #                 memoRegex: '',
              #                 withdrawFee: '0.005',
              #                 withdrawMin: '0.01',
              #                 withdrawMax: '9999999',
              #                 minConfirm: 15,
              #                 unLockConfirm: 0
              #             },
              #             {
              #                 network: 'ETH',
              #                 coin: 'LINK',
              #                 withdrawIntegerMultiple: '0.00000001',
              #                 isDefault: True,
              #                 depositEnable: True,
              #                 withdrawEnable: True,
              #                 depositDesc: '',
              #                 withdrawDesc: '',
              #                 name: 'ERC20',
              #                 resetAddressStatus: False,
              #                 addressRegex: '^(0x)[0-9A-Fa-f]{40}$',
              #                 memoRegex: '',
              #                 withdrawFee: '0.34',
              #                 withdrawMin: '0.68',
              #                 withdrawMax: '0',
              #                 minConfirm: 12,
              #                 unLockConfirm: 0
              #             }
              #         ]
              #     }
              #
              entry = response[i]
              id = self.safe_string(entry, 'coin')
              name = self.safe_string(entry, 'name')
              code = self.safe_currency_code(id)
              precision = None
              isWithdrawEnabled = True
              isDepositEnabled = True
              networkList = self.safe_value(entry, 'networkList', [])
              fees = {}
              fee = None
              for j in range(0, len(networkList)):
                  networkItem = networkList[j]
                  network = self.safe_string(networkItem, 'network')
                  # name = self.safe_string(networkItem, 'name')
                  withdrawFee = self.safe_number(networkItem, 'withdrawFee')
                  depositEnable = self.safe_value(networkItem, 'depositEnable')
                  withdrawEnable = self.safe_value(networkItem, 'withdrawEnable')
                  isDepositEnabled = isDepositEnabled or depositEnable
                  isWithdrawEnabled = isWithdrawEnabled or withdrawEnable
                  fees[network] = withdrawFee
                  isDefault = self.safe_value(networkItem, 'isDefault')
                  if isDefault or fee is None:
                      fee = withdrawFee
              trading = self.safe_value(entry, 'trading')
              active = (isWithdrawEnabled and isDepositEnabled and trading)
              result[code] = {
                  'id': id,
                  'name': name,
                  'code': code,
                  'precision': precision,
                  'info': entry,
                  'active': active,
                  'fee': fee,
                  'fees': fees,
                  'limits': self.limits,
              }
          return result
  
      def fetch_markets(self, params={}):
          defaultType = self.safe_string_2(self.options, 'fetchMarkets', 'defaultType', 'spot')
          type = self.safe_string(params, 'type', defaultType)
          query = self.omit(params, 'type')
          if (type != 'spot') and (type != 'future') and (type != 'margin') and (type != 'delivery'):
              raise ExchangeError(self.id + " does not support '" + type + "' type, set exchange.options['defaultType'] to 'spot', 'margin', 'delivery' or 'future'")  # eslint-disable-line quotes
          method = 'publicGetExchangeInfo'
          if type == 'future':
              method = 'fapiPublicGetExchangeInfo'
          elif type == 'delivery':
              method = 'dapiPublicGetExchangeInfo'
          response = getattr(self, method)(query)
          #
          # spot / margin
          #
          #     {
          #         "timezone":"UTC",
          #         "serverTime":1575416692969,
          #         "rateLimits":[
          #             {"rateLimitType":"REQUEST_WEIGHT","interval":"MINUTE","intervalNum":1,"limit":1200},
          #             {"rateLimitType":"ORDERS","interval":"SECOND","intervalNum":10,"limit":100},
          #             {"rateLimitType":"ORDERS","interval":"DAY","intervalNum":1,"limit":200000}
          #         ],
          #         "exchangeFilters":[],
          #         "symbols":[
          #             {
          #                 "symbol":"ETHBTC",
          #                 "status":"TRADING",
          #                 "baseAsset":"ETH",
          #                 "baseAssetPrecision":8,
          #                 "quoteAsset":"BTC",
          #                 "quotePrecision":8,
          #                 "baseCommissionPrecision":8,
          #                 "quoteCommissionPrecision":8,
          #                 "orderTypes":["LIMIT","LIMIT_MAKER","MARKET","STOP_LOSS_LIMIT","TAKE_PROFIT_LIMIT"],
          #                 "icebergAllowed":true,
          #                 "ocoAllowed":true,
          #                 "quoteOrderQtyMarketAllowed":true,
          #                 "isSpotTradingAllowed":true,
          #                 "isMarginTradingAllowed":true,
          #                 "filters":[
          #                     {"filterType":"PRICE_FILTER","minPrice":"0.00000100","maxPrice":"100000.00000000","tickSize":"0.00000100"},
          #                     {"filterType":"PERCENT_PRICE","multiplierUp":"5","multiplierDown":"0.2","avgPriceMins":5},
          #                     {"filterType":"LOT_SIZE","minQty":"0.00100000","maxQty":"100000.00000000","stepSize":"0.00100000"},
          #                     {"filterType":"MIN_NOTIONAL","minNotional":"0.00010000","applyToMarket":true,"avgPriceMins":5},
          #                     {"filterType":"ICEBERG_PARTS","limit":10},
          #                     {"filterType":"MARKET_LOT_SIZE","minQty":"0.00000000","maxQty":"63100.00000000","stepSize":"0.00000000"},
          #                     {"filterType":"MAX_NUM_ALGO_ORDERS","maxNumAlgoOrders":5}
          #                 ]
          #             },
          #         ],
          #     }
          #
          # futures/usdt-margined(fapi)
          #
          #     {
          #         "timezone":"UTC",
          #         "serverTime":1575417244353,
          #         "rateLimits":[
          #             {"rateLimitType":"REQUEST_WEIGHT","interval":"MINUTE","intervalNum":1,"limit":1200},
          #             {"rateLimitType":"ORDERS","interval":"MINUTE","intervalNum":1,"limit":1200}
          #         ],
          #         "exchangeFilters":[],
          #         "symbols":[
          #             {
          #                 "symbol":"BTCUSDT",
          #                 "status":"TRADING",
          #                 "maintMarginPercent":"2.5000",
          #                 "requiredMarginPercent":"5.0000",
          #                 "baseAsset":"BTC",
          #                 "quoteAsset":"USDT",
          #                 "pricePrecision":2,
          #                 "quantityPrecision":3,
          #                 "baseAssetPrecision":8,
          #                 "quotePrecision":8,
          #                 "filters":[
          #                     {"minPrice":"0.01","maxPrice":"100000","filterType":"PRICE_FILTER","tickSize":"0.01"},
          #                     {"stepSize":"0.001","filterType":"LOT_SIZE","maxQty":"1000","minQty":"0.001"},
          #                     {"stepSize":"0.001","filterType":"MARKET_LOT_SIZE","maxQty":"1000","minQty":"0.001"},
          #                     {"limit":200,"filterType":"MAX_NUM_ORDERS"},
          #                     {"multiplierDown":"0.8500","multiplierUp":"1.1500","multiplierDecimal":"4","filterType":"PERCENT_PRICE"}
          #                 ],
          #                 "orderTypes":["LIMIT","MARKET","STOP"],
          #                 "timeInForce":["GTC","IOC","FOK","GTX"]
          #             }
          #         ]
          #     }
          #
          # delivery/coin-margined(dapi)
          #
          #     {
          #         "timezone": "UTC",
          #         "serverTime": 1597667052958,
          #         "rateLimits": [
          #             {"rateLimitType":"REQUEST_WEIGHT","interval":"MINUTE","intervalNum":1,"limit":6000},
          #             {"rateLimitType":"ORDERS","interval":"MINUTE","intervalNum":1,"limit":6000}
          #         ],
          #         "exchangeFilters": [],
          #         "symbols": [
          #             {
          #                 "symbol": "BTCUSD_200925",
          #                 "pair": "BTCUSD",
          #                 "contractType": "CURRENT_QUARTER",
          #                 "deliveryDate": 1601020800000,
          #                 "onboardDate": 1590739200000,
          #                 "contractStatus": "TRADING",
          #                 "contractSize": 100,
          #                 "marginAsset": "BTC",
          #                 "maintMarginPercent": "2.5000",
          #                 "requiredMarginPercent": "5.0000",
          #                 "baseAsset": "BTC",
          #                 "quoteAsset": "USD",
          #                 "pricePrecision": 1,
          #                 "quantityPrecision": 0,
          #                 "baseAssetPrecision": 8,
          #                 "quotePrecision": 8,
          #                 "equalQtyPrecision": 4,
          #                 "filters": [
          #                     {"minPrice":"0.1","maxPrice":"100000","filterType":"PRICE_FILTER","tickSize":"0.1"},
          #                     {"stepSize":"1","filterType":"LOT_SIZE","maxQty":"100000","minQty":"1"},
          #                     {"stepSize":"0","filterType":"MARKET_LOT_SIZE","maxQty":"100000","minQty":"1"},
          #                     {"limit":200,"filterType":"MAX_NUM_ORDERS"},
          #                     {"multiplierDown":"0.9500","multiplierUp":"1.0500","multiplierDecimal":"4","filterType":"PERCENT_PRICE"}
          #                 ],
          #                 "orderTypes": ["LIMIT","MARKET","STOP","STOP_MARKET","TAKE_PROFIT","TAKE_PROFIT_MARKET","TRAILING_STOP_MARKET"],
          #                 "timeInForce": ["GTC","IOC","FOK","GTX"]
          #             },
          #             {
          #                 "symbol": "BTCUSD_PERP",
          #                 "pair": "BTCUSD",
          #                 "contractType": "PERPETUAL",
          #                 "deliveryDate": 4133404800000,
          #                 "onboardDate": 1596006000000,
          #                 "contractStatus": "TRADING",
          #                 "contractSize": 100,
          #                 "marginAsset": "BTC",
          #                 "maintMarginPercent": "2.5000",
          #                 "requiredMarginPercent": "5.0000",
          #                 "baseAsset": "BTC",
          #                 "quoteAsset": "USD",
          #                 "pricePrecision": 1,
          #                 "quantityPrecision": 0,
          #                 "baseAssetPrecision": 8,
          #                 "quotePrecision": 8,
          #                 "equalQtyPrecision": 4,
          #                 "filters": [
          #                     {"minPrice":"0.1","maxPrice":"100000","filterType":"PRICE_FILTER","tickSize":"0.1"},
          #                     {"stepSize":"1","filterType":"LOT_SIZE","maxQty":"100000","minQty":"1"},
          #                     {"stepSize":"1","filterType":"MARKET_LOT_SIZE","maxQty":"100000","minQty":"1"},
          #                     {"limit":200,"filterType":"MAX_NUM_ORDERS"},
          #                     {"multiplierDown":"0.8500","multiplierUp":"1.1500","multiplierDecimal":"4","filterType":"PERCENT_PRICE"}
          #                 ],
          #                 "orderTypes": ["LIMIT","MARKET","STOP","STOP_MARKET","TAKE_PROFIT","TAKE_PROFIT_MARKET","TRAILING_STOP_MARKET"],
          #                 "timeInForce": ["GTC","IOC","FOK","GTX"]
          #             }
          #         ]
          #     }
          #
          if self.options['adjustForTimeDifference']:
              self.load_time_difference()
          markets = self.safe_value(response, 'symbols', [])
          result = []
          for i in range(0, len(markets)):
              market = markets[i]
              spot = (type == 'spot')
              future = (type == 'future')
              delivery = (type == 'delivery')
              id = self.safe_string(market, 'symbol')
              lowercaseId = self.safe_string_lower(market, 'symbol')
              baseId = self.safe_string(market, 'baseAsset')
              quoteId = self.safe_string(market, 'quoteAsset')
              base = self.safe_currency_code(baseId)
              quote = self.safe_currency_code(quoteId)
              contractType = self.safe_string(market, 'contractType')
              idSymbol = (future or delivery) and (contractType != 'PERPETUAL')
              symbol = id if idSymbol else (base + '/' + quote)
              filters = self.safe_value(market, 'filters', [])
              filtersByType = self.index_by(filters, 'filterType')
              precision = {
                  'base': self.safe_integer(market, 'baseAssetPrecision'),
                  'quote': self.safe_integer(market, 'quotePrecision'),
                  'amount': self.safe_integer(market, 'baseAssetPrecision'),
                  'price': self.safe_integer(market, 'quotePrecision'),
              }
              status = self.safe_string_2(market, 'status', 'contractStatus')
              active = (status == 'TRADING')
              margin = self.safe_value(market, 'isMarginTradingAllowed', future or delivery)
              entry = {
                  'id': id,
                  'lowercaseId': lowercaseId,
                  'symbol': symbol,
                  'base': base,
                  'quote': quote,
                  'baseId': baseId,
                  'quoteId': quoteId,
                  'info': market,
                  'type': type,
                  'spot': spot,
                  'margin': margin,
                  'future': future,
                  'delivery': delivery,
                  'active': active,
                  'precision': precision,
                  'limits': {
                      'amount': {
                          'min': math.pow(10, -precision['amount']),
                          'max': None,
                      },
                      'price': {
                          'min': None,
                          'max': None,
                      },
                      'cost': {
                          'min': None,
                          'max': None,
                      },
                  },
              }
              if 'PRICE_FILTER' in filtersByType:
                  filter = self.safe_value(filtersByType, 'PRICE_FILTER', {})
                  # PRICE_FILTER reports zero values for maxPrice
                  # since they updated filter types in November 2018
                  # https://github.com/ccxt/ccxt/issues/4286
                  # therefore limits['price']['max'] doesn't have any meaningful value except None
                  entry['limits']['price'] = {
                      'min': self.safe_number(filter, 'minPrice'),
                      'max': None,
                  }
                  maxPrice = self.safe_number(filter, 'maxPrice')
                  if (maxPrice is not None) and (maxPrice > 0):
                      entry['limits']['price']['max'] = maxPrice
                  entry['precision']['price'] = self.precision_from_string(filter['tickSize'])
              if 'LOT_SIZE' in filtersByType:
                  filter = self.safe_value(filtersByType, 'LOT_SIZE', {})
                  stepSize = self.safe_string(filter, 'stepSize')
                  entry['precision']['amount'] = self.precision_from_string(stepSize)
                  entry['limits']['amount'] = {
                      'min': self.safe_number(filter, 'minQty'),
                      'max': self.safe_number(filter, 'maxQty'),
                  }
              if 'MARKET_LOT_SIZE' in filtersByType:
                  filter = self.safe_value(filtersByType, 'MARKET_LOT_SIZE', {})
                  entry['limits']['market'] = {
                      'min': self.safe_number(filter, 'minQty'),
                      'max': self.safe_number(filter, 'maxQty'),
                  }
              if 'MIN_NOTIONAL' in filtersByType:
                  filter = self.safe_value(filtersByType, 'MIN_NOTIONAL', {})
                  entry['limits']['cost']['min'] = self.safe_number_2(filter, 'minNotional', 'notional')
              result.append(entry)
          return result
  
      def fetch_balance(self, params={}):
          self.load_markets()
          defaultType = self.safe_string_2(self.options, 'fetchBalance', 'defaultType', 'spot')
          type = self.safe_string(params, 'type', defaultType)
          method = 'privateGetAccount'
          if type == 'future':
              options = self.safe_value(self.options, 'future', {})
              fetchBalanceOptions = self.safe_value(options, 'fetchBalance', {})
              method = self.safe_string(fetchBalanceOptions, 'method', 'fapiPrivateV2GetAccount')
          elif type == 'delivery':
              options = self.safe_value(self.options, 'delivery', {})
              fetchBalanceOptions = self.safe_value(options, 'fetchBalance', {})
              method = self.safe_string(fetchBalanceOptions, 'method', 'dapiPrivateGetAccount')
          elif type == 'margin':
              method = 'sapiGetMarginAccount'
          query = self.omit(params, 'type')
          response = getattr(self, method)(query)
          #
          # spot
          #
          #     {
          #         makerCommission: 10,
          #         takerCommission: 10,
          #         buyerCommission: 0,
          #         sellerCommission: 0,
          #         canTrade: True,
          #         canWithdraw: True,
          #         canDeposit: True,
          #         updateTime: 1575357359602,
          #         accountType: "MARGIN",
          #         balances: [
          #             {asset: "BTC", free: "0.00219821", locked: "0.00000000"  },
          #         ]
          #     }
          #
          # margin
          #
          #     {
          #         "borrowEnabled":true,
          #         "marginLevel":"999.00000000",
          #         "totalAssetOfBtc":"0.00000000",
          #         "totalLiabilityOfBtc":"0.00000000",
          #         "totalNetAssetOfBtc":"0.00000000",
          #         "tradeEnabled":true,
          #         "transferEnabled":true,
          #         "userAssets":[
          #             {"asset":"MATIC","borrowed":"0.00000000","free":"0.00000000","interest":"0.00000000","locked":"0.00000000","netAsset":"0.00000000"},
          #             {"asset":"VET","borrowed":"0.00000000","free":"0.00000000","interest":"0.00000000","locked":"0.00000000","netAsset":"0.00000000"},
          #             {"asset":"USDT","borrowed":"0.00000000","free":"0.00000000","interest":"0.00000000","locked":"0.00000000","netAsset":"0.00000000"}
          #         ],
          #     }
          #
          # futures(fapi)
          #
          #     fapiPrivateGetAccount
          #
          #     {
          #         "feeTier":0,
          #         "canTrade":true,
          #         "canDeposit":true,
          #         "canWithdraw":true,
          #         "updateTime":0,
          #         "totalInitialMargin":"0.00000000",
          #         "totalMaintMargin":"0.00000000",
          #         "totalWalletBalance":"4.54000000",
          #         "totalUnrealizedProfit":"0.00000000",
          #         "totalMarginBalance":"4.54000000",
          #         "totalPositionInitialMargin":"0.00000000",
          #         "totalOpenOrderInitialMargin":"0.00000000",
          #         "maxWithdrawAmount":"4.54000000",
          #         "assets":[
          #             {
          #                 "asset":"USDT",
          #                 "walletBalance":"4.54000000",
          #                 "unrealizedProfit":"0.00000000",
          #                 "marginBalance":"4.54000000",
          #                 "maintMargin":"0.00000000",
          #                 "initialMargin":"0.00000000",
          #                 "positionInitialMargin":"0.00000000",
          #                 "openOrderInitialMargin":"0.00000000",
          #                 "maxWithdrawAmount":"4.54000000"
          #             }
          #         ],
          #         "positions":[
          #             {
          #                 "symbol":"BTCUSDT",
          #                 "initialMargin":"0.00000",
          #                 "maintMargin":"0.00000",
          #                 "unrealizedProfit":"0.00000000",
          #                 "positionInitialMargin":"0.00000",
          #                 "openOrderInitialMargin":"0.00000"
          #             }
          #         ]
          #     }
          #
          #     fapiPrivateV2GetAccount
          #
          #     {
          #         "feeTier":0,
          #         "canTrade":true,
          #         "canDeposit":true,
          #         "canWithdraw":true,
          #         "updateTime":0,
          #         "totalInitialMargin":"0.00000000",
          #         "totalMaintMargin":"0.00000000",
          #         "totalWalletBalance":"0.00000000",
          #         "totalUnrealizedProfit":"0.00000000",
          #         "totalMarginBalance":"0.00000000",
          #         "totalPositionInitialMargin":"0.00000000",
          #         "totalOpenOrderInitialMargin":"0.00000000",
          #         "totalCrossWalletBalance":"0.00000000",
          #         "totalCrossUnPnl":"0.00000000",
          #         "availableBalance":"0.00000000",
          #         "maxWithdrawAmount":"0.00000000",
          #         "assets":[
          #             {
          #                 "asset":"BNB",
          #                 "walletBalance":"0.01000000",
          #                 "unrealizedProfit":"0.00000000",
          #                 "marginBalance":"0.01000000",
          #                 "maintMargin":"0.00000000",
          #                 "initialMargin":"0.00000000",
          #                 "positionInitialMargin":"0.00000000",
          #                 "openOrderInitialMargin":"0.00000000",
          #                 "maxWithdrawAmount":"0.01000000",
          #                 "crossWalletBalance":"0.01000000",
          #                 "crossUnPnl":"0.00000000",
          #                 "availableBalance":"0.01000000"
          #             }
          #         ],
          #         "positions":[
          #             {
          #                 "symbol":"BTCUSDT",
          #                 "initialMargin":"0",
          #                 "maintMargin":"0",
          #                 "unrealizedProfit":"0.00000000",
          #                 "positionInitialMargin":"0",
          #                 "openOrderInitialMargin":"0",
          #                 "leverage":"20",
          #                 "isolated":false,
          #                 "entryPrice":"0.00000",
          #                 "maxNotional":"5000000",
          #                 "positionSide":"BOTH"
          #             },
          #         ]
          #     }
          #
          #     fapiPrivateV2GetBalance
          #
          #     [
          #         {
          #             "accountAlias":"FzFzXquXXqoC",
          #             "asset":"BNB",
          #             "balance":"0.01000000",
          #             "crossWalletBalance":"0.01000000",
          #             "crossUnPnl":"0.00000000",
          #             "availableBalance":"0.01000000",
          #             "maxWithdrawAmount":"0.01000000"
          #         }
          #     ]
          #
          result = {'info': response}
          if (type == 'spot') or (type == 'margin'):
              balances = self.safe_value_2(response, 'balances', 'userAssets', [])
              for i in range(0, len(balances)):
                  balance = balances[i]
                  currencyId = self.safe_string(balance, 'asset')
                  code = self.safe_currency_code(currencyId)
                  account = self.account()
                  account['free'] = self.safe_number(balance, 'free')
                  account['used'] = self.safe_number(balance, 'locked')
                  result[code] = account
          else:
              balances = response
              if not isinstance(response, list):
                  balances = self.safe_value(response, 'assets', [])
              for i in range(0, len(balances)):
                  balance = balances[i]
                  currencyId = self.safe_string(balance, 'asset')
                  code = self.safe_currency_code(currencyId)
                  account = self.account()
                  account['free'] = self.safe_number(balance, 'availableBalance')
                  account['used'] = self.safe_number(balance, 'initialMargin')
                  account['total'] = self.safe_number_2(balance, 'marginBalance', 'balance')
                  result[code] = account
          return self.parse_balance(result)
  
      def fetch_order_book(self, symbol, limit=None, params={}):
          self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          if limit is not None:
              request['limit'] = limit  # default 100, max 5000, see https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#order-book
          method = 'publicGetDepth'
          if market['future']:
              method = 'fapiPublicGetDepth'
          elif market['delivery']:
              method = 'dapiPublicGetDepth'
          response = getattr(self, method)(self.extend(request, params))
          orderbook = self.parse_order_book(response)
          orderbook['nonce'] = self.safe_integer(response, 'lastUpdateId')
          return orderbook
  
      def parse_ticker(self, ticker, market=None):
          #
          #     {
          #         symbol: 'ETHBTC',
          #         priceChange: '0.00068700',
          #         priceChangePercent: '2.075',
          #         weightedAvgPrice: '0.03342681',
          #         prevClosePrice: '0.03310300',
          #         lastPrice: '0.03378900',
          #         lastQty: '0.07700000',
          #         bidPrice: '0.03378900',
          #         bidQty: '7.16800000',
          #         askPrice: '0.03379000',
          #         askQty: '24.00000000',
          #         openPrice: '0.03310200',
          #         highPrice: '0.03388900',
          #         lowPrice: '0.03306900',
          #         volume: '205478.41000000',
          #         quoteVolume: '6868.48826294',
          #         openTime: 1601469986932,
          #         closeTime: 1601556386932,
          #         firstId: 196098772,
          #         lastId: 196186315,
          #         count: 87544
          #     }
          #
          timestamp = self.safe_integer(ticker, 'closeTime')
          marketId = self.safe_string(ticker, 'symbol')
          symbol = self.safe_symbol(marketId, market)
          last = self.safe_number(ticker, 'lastPrice')
          return {
              'symbol': symbol,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'high': self.safe_number(ticker, 'highPrice'),
              'low': self.safe_number(ticker, 'lowPrice'),
              'bid': self.safe_number(ticker, 'bidPrice'),
              'bidVolume': self.safe_number(ticker, 'bidQty'),
              'ask': self.safe_number(ticker, 'askPrice'),
              'askVolume': self.safe_number(ticker, 'askQty'),
              'vwap': self.safe_number(ticker, 'weightedAvgPrice'),
              'open': self.safe_number(ticker, 'openPrice'),
              'close': last,
              'last': last,
              'previousClose': self.safe_number(ticker, 'prevClosePrice'),  # previous day close
              'change': self.safe_number(ticker, 'priceChange'),
              'percentage': self.safe_number(ticker, 'priceChangePercent'),
              'average': None,
              'baseVolume': self.safe_number(ticker, 'volume'),
              'quoteVolume': self.safe_number(ticker, 'quoteVolume'),
              'info': ticker,
          }
  
      def fetch_status(self, params={}):
          response = self.wapiGetSystemStatus(params)
          status = self.safe_string(response, 'status')
          if status is not None:
              status = 'ok' if (status == '0') else 'maintenance'
              self.status = self.extend(self.status, {
                  'status': status,
                  'updated': self.milliseconds(),
              })
          return self.status
  
      def fetch_ticker(self, symbol, params={}):
          self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          method = 'publicGetTicker24hr'
          if market['future']:
              method = 'fapiPublicGetTicker24hr'
          elif market['delivery']:
              method = 'dapiPublicGetTicker24hr'
          response = getattr(self, method)(self.extend(request, params))
          if isinstance(response, list):
              firstTicker = self.safe_value(response, 0, {})
              return self.parse_ticker(firstTicker, market)
          return self.parse_ticker(response, market)
  
      def fetch_bids_asks(self, symbols=None, params={}):
          self.load_markets()
          defaultType = self.safe_string_2(self.options, 'fetchBidsAsks', 'defaultType', 'spot')
          type = self.safe_string(params, 'type', defaultType)
          query = self.omit(params, 'type')
          method = None
          if type == 'future':
              method = 'fapiPublicGetTickerBookTicker'
          elif type == 'delivery':
              method = 'dapiPublicGetTickerBookTicker'
          else:
              method = 'publicGetTickerBookTicker'
          response = getattr(self, method)(query)
          return self.parse_tickers(response, symbols)
  
      def fetch_tickers(self, symbols=None, params={}):
          self.load_markets()
          defaultType = self.safe_string_2(self.options, 'fetchTickers', 'defaultType', 'spot')
          type = self.safe_string(params, 'type', defaultType)
          query = self.omit(params, 'type')
          defaultMethod = None
          if type == 'future':
              defaultMethod = 'fapiPublicGetTicker24hr'
          elif type == 'delivery':
              defaultMethod = 'dapiPublicGetTicker24hr'
          else:
              defaultMethod = 'publicGetTicker24hr'
          method = self.safe_string(self.options, 'fetchTickersMethod', defaultMethod)
          response = getattr(self, method)(query)
          return self.parse_tickers(response, symbols)
  
      def parse_ohlcv(self, ohlcv, market=None):
          #
          #     [
          #         1591478520000,
          #         "0.02501300",
          #         "0.02501800",
          #         "0.02500000",
          #         "0.02500000",
          #         "22.19000000",
          #         1591478579999,
          #         "0.55490906",
          #         40,
          #         "10.92900000",
          #         "0.27336462",
          #         "0"
          #     ]
          #
          return [
              self.safe_integer(ohlcv, 0),
              self.safe_number(ohlcv, 1),
              self.safe_number(ohlcv, 2),
              self.safe_number(ohlcv, 3),
              self.safe_number(ohlcv, 4),
              self.safe_number(ohlcv, 5),
          ]
  
      def fetch_ohlcv(self, symbol, timeframe='1m', since=None, limit=None, params={}):
          self.load_markets()
          market = self.market(symbol)
          # binance docs say that the default limit 500, max 1500 for futures, max 1000 for spot markets
          # the reality is that the time range wider than 500 candles won't work right
          defaultLimit = 500
          maxLimit = 1500
          limit = defaultLimit if (limit is None) else min(limit, maxLimit)
          request = {
              'symbol': market['id'],
              'interval': self.timeframes[timeframe],
              'limit': limit,
          }
          duration = self.parse_timeframe(timeframe)
          if since is not None:
              request['startTime'] = since
              if since > 0:
                  endTime = self.sum(since, limit * duration * 1000 - 1)
                  now = self.milliseconds()
                  request['endTime'] = min(now, endTime)
          method = 'publicGetKlines'
          if market['future']:
              method = 'fapiPublicGetKlines'
          elif market['delivery']:
              method = 'dapiPublicGetKlines'
          response = getattr(self, method)(self.extend(request, params))
          #
          #     [
          #         [1591478520000,"0.02501300","0.02501800","0.02500000","0.02500000","22.19000000",1591478579999,"0.55490906",40,"10.92900000","0.27336462","0"],
          #         [1591478580000,"0.02499600","0.02500900","0.02499400","0.02500300","21.34700000",1591478639999,"0.53370468",24,"7.53800000","0.18850725","0"],
          #         [1591478640000,"0.02500800","0.02501100","0.02500300","0.02500800","154.14200000",1591478699999,"3.85405839",97,"5.32300000","0.13312641","0"],
          #     ]
          #
          return self.parse_ohlcvs(response, market, timeframe, since, limit)
  
      def parse_trade(self, trade, market=None):
          if 'isDustTrade' in trade:
              return self.parse_dust_trade(trade, market)
          #
          # aggregate trades
          # https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#compressedaggregate-trades-list
          #
          #     {
          #         "a": 26129,         # Aggregate tradeId
          #         "p": "0.01633102",  # Price
          #         "q": "4.70443515",  # Quantity
          #         "f": 27781,         # First tradeId
          #         "l": 27781,         # Last tradeId
          #         "T": 1498793709153,  # Timestamp
          #         "m": True,          # Was the buyer the maker?
          #         "M": True           # Was the trade the best price match?
          #     }
          #
          # recent public trades and old public trades
          # https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#recent-trades-list
          # https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#old-trade-lookup-market_data
          #
          #     {
          #         "id": 28457,
          #         "price": "4.00000100",
          #         "qty": "12.00000000",
          #         "time": 1499865549590,
          #         "isBuyerMaker": True,
          #         "isBestMatch": True
          #     }
          #
          # private trades
          # https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#account-trade-list-user_data
          #
          #     {
          #         "symbol": "BNBBTC",
          #         "id": 28457,
          #         "orderId": 100234,
          #         "price": "4.00000100",
          #         "qty": "12.00000000",
          #         "commission": "10.10000000",
          #         "commissionAsset": "BNB",
          #         "time": 1499865549590,
          #         "isBuyer": True,
          #         "isMaker": False,
          #         "isBestMatch": True
          #     }
          #
          # futures trades
          # https://binance-docs.github.io/apidocs/futures/en/#account-trade-list-user_data
          #
          #     {
          #       "accountId": 20,
          #       "buyer": False,
          #       "commission": "-0.07819010",
          #       "commissionAsset": "USDT",
          #       "counterPartyId": 653,
          #       "id": 698759,
          #       "maker": False,
          #       "orderId": 25851813,
          #       "price": "7819.01",
          #       "qty": "0.002",
          #       "quoteQty": "0.01563",
          #       "realizedPnl": "-0.91539999",
          #       "side": "SELL",
          #       "symbol": "BTCUSDT",
          #       "time": 1569514978020
          #     }
          #     {
          #       "symbol": "BTCUSDT",
          #       "id": 477128891,
          #       "orderId": 13809777875,
          #       "side": "SELL",
          #       "price": "38479.55",
          #       "qty": "0.001",
          #       "realizedPnl": "-0.00009534",
          #       "marginAsset": "USDT",
          #       "quoteQty": "38.47955",
          #       "commission": "-0.00076959",
          #       "commissionAsset": "USDT",
          #       "time": 1612733566708,
          #       "positionSide": "BOTH",
          #       "maker": True,
          #       "buyer": False
          #     }
          #
          timestamp = self.safe_integer_2(trade, 'T', 'time')
          price = self.safe_number_2(trade, 'p', 'price')
          amount = self.safe_number_2(trade, 'q', 'qty')
          id = self.safe_string_2(trade, 'a', 'id')
          side = None
          orderId = self.safe_string(trade, 'orderId')
          if 'm' in trade:
              side = 'sell' if trade['m'] else 'buy'  # self is reversed intentionally
          elif 'isBuyerMaker' in trade:
              side = 'sell' if trade['isBuyerMaker'] else 'buy'
          elif 'side' in trade:
              side = self.safe_string_lower(trade, 'side')
          else:
              if 'isBuyer' in trade:
                  side = 'buy' if trade['isBuyer'] else 'sell'  # self is a True side
          fee = None
          if 'commission' in trade:
              fee = {
                  'cost': self.safe_number(trade, 'commission'),
                  'currency': self.safe_currency_code(self.safe_string(trade, 'commissionAsset')),
              }
          takerOrMaker = None
          if 'isMaker' in trade:
              takerOrMaker = 'maker' if trade['isMaker'] else 'taker'
          if 'maker' in trade:
              takerOrMaker = 'maker' if trade['maker'] else 'taker'
          marketId = self.safe_string(trade, 'symbol')
          symbol = self.safe_symbol(marketId, market)
          cost = None
          if (price is not None) and (amount is not None):
              cost = price * amount
          return {
              'info': trade,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'symbol': symbol,
              'id': id,
              'order': orderId,
              'type': None,
              'side': side,
              'takerOrMaker': takerOrMaker,
              'price': price,
              'amount': amount,
              'cost': cost,
              'fee': fee,
          }
  
      def fetch_trades(self, symbol, since=None, limit=None, params={}):
          self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
              # 'fromId': 123,    # ID to get aggregate trades from INCLUSIVE.
              # 'startTime': 456,  # Timestamp in ms to get aggregate trades from INCLUSIVE.
              # 'endTime': 789,   # Timestamp in ms to get aggregate trades until INCLUSIVE.
              # 'limit': 500,     # default = 500, maximum = 1000
          }
          defaultType = self.safe_string_2(self.options, 'fetchTrades', 'defaultType', 'spot')
          type = self.safe_string(params, 'type', defaultType)
          query = self.omit(params, 'type')
          defaultMethod = None
          if type == 'future':
              defaultMethod = 'fapiPublicGetAggTrades'
          elif type == 'delivery':
              defaultMethod = 'dapiPublicGetAggTrades'
          else:
              defaultMethod = 'publicGetAggTrades'
          method = self.safe_string(self.options, 'fetchTradesMethod', defaultMethod)
          if method == 'publicGetAggTrades':
              if since is not None:
                  request['startTime'] = since
                  # https://github.com/ccxt/ccxt/issues/6400
                  # https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#compressedaggregate-trades-list
                  request['endTime'] = self.sum(since, 3600000)
              if type == 'future':
                  method = 'fapiPublicGetAggTrades'
              elif type == 'delivery':
                  method = 'dapiPublicGetAggTrades'
          elif method == 'publicGetHistoricalTrades':
              if type == 'future':
                  method = 'fapiPublicGetHistoricalTrades'
              elif type == 'delivery':
                  method = 'dapiPublicGetHistoricalTrades'
          if limit is not None:
              request['limit'] = limit  # default = 500, maximum = 1000
          #
          # Caveats:
          # - default limit(500) applies only if no other parameters set, trades up
          #   to the maximum limit may be returned to satisfy other parameters
          # - if both limit and time window is set and time window contains more
          #   trades than the limit then the last trades from the window are returned
          # - 'tradeId' accepted and returned by self method is "aggregate" trade id
          #   which is different from actual trade id
          # - setting both fromId and time window results in error
          response = getattr(self, method)(self.extend(request, query))
          #
          # aggregate trades
          #
          #     [
          #         {
          #             "a": 26129,         # Aggregate tradeId
          #             "p": "0.01633102",  # Price
          #             "q": "4.70443515",  # Quantity
          #             "f": 27781,         # First tradeId
          #             "l": 27781,         # Last tradeId
          #             "T": 1498793709153,  # Timestamp
          #             "m": True,          # Was the buyer the maker?
          #             "M": True           # Was the trade the best price match?
          #         }
          #     ]
          #
          # recent public trades and historical public trades
          #
          #     [
          #         {
          #             "id": 28457,
          #             "price": "4.00000100",
          #             "qty": "12.00000000",
          #             "time": 1499865549590,
          #             "isBuyerMaker": True,
          #             "isBestMatch": True
          #         }
          #     ]
          #
          return self.parse_trades(response, market, since, limit)
  
      def parse_order_status(self, status):
          statuses = {
              'NEW': 'open',
              'PARTIALLY_FILLED': 'open',
              'FILLED': 'closed',
              'CANCELED': 'canceled',
              'PENDING_CANCEL': 'canceling',  # currently unused
              'REJECTED': 'rejected',
              'EXPIRED': 'expired',
          }
          return self.safe_string(statuses, status, status)
  
      def parse_order(self, order, market=None):
          #
          # spot
          #
          #     {
          #         "symbol": "LTCBTC",
          #         "orderId": 1,
          #         "clientOrderId": "myOrder1",
          #         "price": "0.1",
          #         "origQty": "1.0",
          #         "executedQty": "0.0",
          #         "cummulativeQuoteQty": "0.0",
          #         "status": "NEW",
          #         "timeInForce": "GTC",
          #         "type": "LIMIT",
          #         "side": "BUY",
          #         "stopPrice": "0.0",
          #         "icebergQty": "0.0",
          #         "time": 1499827319559,
          #         "updateTime": 1499827319559,
          #         "isWorking": True
          #     }
          #
          # futures
          #
          #     {
          #         "symbol": "BTCUSDT",
          #         "orderId": 1,
          #         "clientOrderId": "myOrder1",
          #         "price": "0.1",
          #         "origQty": "1.0",
          #         "executedQty": "1.0",
          #         "cumQuote": "10.0",
          #         "status": "NEW",
          #         "timeInForce": "GTC",
          #         "type": "LIMIT",
          #         "side": "BUY",
          #         "stopPrice": "0.0",
          #         "updateTime": 1499827319559
          #     }
          #
          # createOrder with {"newOrderRespType": "FULL"}
          #
          #     {
          #       "symbol": "BTCUSDT",
          #       "orderId": 5403233939,
          #       "orderListId": -1,
          #       "clientOrderId": "x-R4BD3S825e669e75b6c14f69a2c43e",
          #       "transactTime": 1617151923742,
          #       "price": "0.00000000",
          #       "origQty": "0.00050000",
          #       "executedQty": "0.00050000",
          #       "cummulativeQuoteQty": "29.47081500",
          #       "status": "FILLED",
          #       "timeInForce": "GTC",
          #       "type": "MARKET",
          #       "side": "BUY",
          #       "fills": [
          #         {
          #           "price": "58941.63000000",
          #           "qty": "0.00050000",
          #           "commission": "0.00007050",
          #           "commissionAsset": "BNB",
          #           "tradeId": 737466631
          #         }
          #       ]
          #     }
          #
          status = self.parse_order_status(self.safe_string(order, 'status'))
          marketId = self.safe_string(order, 'symbol')
          symbol = self.safe_symbol(marketId, market)
          timestamp = None
          if 'time' in order:
              timestamp = self.safe_integer(order, 'time')
          elif 'transactTime' in order:
              timestamp = self.safe_integer(order, 'transactTime')
          price = self.safe_number(order, 'price')
          amount = self.safe_number(order, 'origQty')
          filled = self.safe_number(order, 'executedQty')
          # - Spot/Margin market: cummulativeQuoteQty
          # - Futures market: cumQuote.
          #   Note self is not the actual cost, since Binance futures uses leverage to calculate margins.
          cost = self.safe_number_2(order, 'cummulativeQuoteQty', 'cumQuote')
          id = self.safe_string(order, 'orderId')
          type = self.safe_string_lower(order, 'type')
          if type == 'limit_maker':
              type = 'limit'
          side = self.safe_string_lower(order, 'side')
          fills = self.safe_value(order, 'fills', [])
          trades = self.parse_trades(fills, market)
          clientOrderId = self.safe_string(order, 'clientOrderId')
          timeInForce = self.safe_string(order, 'timeInForce')
          postOnly = (type == 'limit_maker') or (timeInForce == 'GTX')
          stopPrice = self.safe_number(order, 'stopPrice')
          return self.safe_order({
              'info': order,
              'id': id,
              'clientOrderId': clientOrderId,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'lastTradeTimestamp': None,
              'symbol': symbol,
              'type': type,
              'timeInForce': timeInForce,
              'postOnly': postOnly,
              'side': side,
              'price': price,
              'stopPrice': stopPrice,
              'amount': amount,
              'cost': cost,
              'average': None,
              'filled': filled,
              'remaining': None,
              'status': status,
              'fee': None,
              'trades': trades,
          })
  
      def create_order(self, symbol, type, side, amount, price=None, params={}):
          self.load_markets()
          market = self.market(symbol)
          defaultType = self.safe_string_2(self.options, 'createOrder', 'defaultType', market['type'])
          orderType = self.safe_string(params, 'type', defaultType)
          clientOrderId = self.safe_string_2(params, 'newClientOrderId', 'clientOrderId')
          params = self.omit(params, ['type', 'newClientOrderId', 'clientOrderId'])
          method = 'privatePostOrder'
          if orderType == 'future':
              method = 'fapiPrivatePostOrder'
          elif orderType == 'delivery':
              method = 'dapiPrivatePostOrder'
          elif orderType == 'margin':
              method = 'sapiPostMarginOrder'
          # the next 5 lines are added to support for testing orders
          if market['spot']:
              test = self.safe_value(params, 'test', False)
              if test:
                  method += 'Test'
              params = self.omit(params, 'test')
          uppercaseType = type.upper()
          validOrderTypes = self.safe_value(market['info'], 'orderTypes')
          if not self.in_array(uppercaseType, validOrderTypes):
              raise InvalidOrder(self.id + ' ' + type + ' is not a valid order type in ' + market['type'] + ' market ' + symbol)
          request = {
              'symbol': market['id'],
              'type': uppercaseType,
              'side': side.upper(),
          }
          if clientOrderId is None:
              broker = self.safe_value(self.options, 'broker')
              if broker:
                  brokerId = self.safe_string(broker, orderType)
                  if brokerId is not None:
                      request['newClientOrderId'] = brokerId + self.uuid22()
          else:
              request['newClientOrderId'] = clientOrderId
          if (orderType == 'spot') or (orderType == 'margin'):
              request['newOrderRespType'] = self.safe_value(self.options['newOrderRespType'], type, 'RESULT')  # 'ACK' for order id, 'RESULT' for full order or 'FULL' for order with fills
          else:
              # delivery and future
              request['newOrderRespType'] = 'RESULT'  # "ACK", "RESULT", default "ACK"
          # additional required fields depending on the order type
          timeInForceIsRequired = False
          priceIsRequired = False
          stopPriceIsRequired = False
          quantityIsRequired = False
          #
          # spot/margin
          #
          #     LIMIT                timeInForce, quantity, price
          #     MARKET               quantity or quoteOrderQty
          #     STOP_LOSS            quantity, stopPrice
          #     STOP_LOSS_LIMIT      timeInForce, quantity, price, stopPrice
          #     TAKE_PROFIT          quantity, stopPrice
          #     TAKE_PROFIT_LIMIT    timeInForce, quantity, price, stopPrice
          #     LIMIT_MAKER          quantity, price
          #
          # futures
          #
          #     LIMIT                timeInForce, quantity, price
          #     MARKET               quantity
          #     STOP/TAKE_PROFIT     quantity, price, stopPrice
          #     STOP_MARKET          stopPrice
          #     TAKE_PROFIT_MARKET   stopPrice
          #     TRAILING_STOP_MARKET callbackRate
          #
          if uppercaseType == 'MARKET':
              quoteOrderQty = self.safe_value(self.options, 'quoteOrderQty', False)
              if quoteOrderQty:
                  quoteOrderQty = self.safe_number(params, 'quoteOrderQty')
                  precision = market['precision']['price']
                  if quoteOrderQty is not None:
                      request['quoteOrderQty'] = self.decimal_to_precision(quoteOrderQty, TRUNCATE, precision, self.precisionMode)
                      params = self.omit(params, 'quoteOrderQty')
                  elif price is not None:
                      request['quoteOrderQty'] = self.decimal_to_precision(amount * price, TRUNCATE, precision, self.precisionMode)
                  else:
                      quantityIsRequired = True
              else:
                  quantityIsRequired = True
          elif uppercaseType == 'LIMIT':
              priceIsRequired = True
              timeInForceIsRequired = True
              quantityIsRequired = True
          elif (uppercaseType == 'STOP_LOSS') or (uppercaseType == 'TAKE_PROFIT'):
              stopPriceIsRequired = True
              quantityIsRequired = True
              if market['future'] or market['delivery']:
                  priceIsRequired = True
          elif (uppercaseType == 'STOP_LOSS_LIMIT') or (uppercaseType == 'TAKE_PROFIT_LIMIT'):
              quantityIsRequired = True
              stopPriceIsRequired = True
              priceIsRequired = True
              timeInForceIsRequired = True
          elif uppercaseType == 'LIMIT_MAKER':
              priceIsRequired = True
              quantityIsRequired = True
          elif uppercaseType == 'STOP':
              quantityIsRequired = True
              stopPriceIsRequired = True
              priceIsRequired = True
          elif (uppercaseType == 'STOP_MARKET') or (uppercaseType == 'TAKE_PROFIT_MARKET'):
              closePosition = self.safe_value(params, 'closePosition')
              if closePosition is None:
                  quantityIsRequired = True
              stopPriceIsRequired = True
          elif uppercaseType == 'TRAILING_STOP_MARKET':
              quantityIsRequired = True
              callbackRate = self.safe_number(params, 'callbackRate')
              if callbackRate is None:
                  raise InvalidOrder(self.id + ' createOrder() requires a callbackRate extra param for a ' + type + ' order')
          if quantityIsRequired:
              request['quantity'] = self.amount_to_precision(symbol, amount)
          if priceIsRequired:
              if price is None:
                  raise InvalidOrder(self.id + ' createOrder() requires a price argument for a ' + type + ' order')
              request['price'] = self.price_to_precision(symbol, price)
          if timeInForceIsRequired:
              request['timeInForce'] = self.options['defaultTimeInForce']  # 'GTC' = Good To Cancel(default), 'IOC' = Immediate Or Cancel
          if stopPriceIsRequired:
              stopPrice = self.safe_number(params, 'stopPrice')
              if stopPrice is None:
                  raise InvalidOrder(self.id + ' createOrder() requires a stopPrice extra param for a ' + type + ' order')
              else:
                  params = self.omit(params, 'stopPrice')
                  request['stopPrice'] = self.price_to_precision(symbol, stopPrice)
          response = getattr(self, method)(self.extend(request, params))
          return self.parse_order(response, market)
  
      def fetch_order(self, id, symbol=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' fetchOrder() requires a symbol argument')
          self.load_markets()
          market = self.market(symbol)
          defaultType = self.safe_string_2(self.options, 'fetchOrder', 'defaultType', market['type'])
          type = self.safe_string(params, 'type', defaultType)
          method = 'privateGetOrder'
          if type == 'future':
              method = 'fapiPrivateGetOrder'
          elif type == 'delivery':
              method = 'dapiPrivateGetOrder'
          elif type == 'margin':
              method = 'sapiGetMarginOrder'
          request = {
              'symbol': market['id'],
          }
          clientOrderId = self.safe_value_2(params, 'origClientOrderId', 'clientOrderId')
          if clientOrderId is not None:
              request['origClientOrderId'] = clientOrderId
          else:
              request['orderId'] = id
          query = self.omit(params, ['type', 'clientOrderId', 'origClientOrderId'])
          response = getattr(self, method)(self.extend(request, query))
          return self.parse_order(response, market)
  
      def fetch_orders(self, symbol=None, since=None, limit=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' fetchOrders() requires a symbol argument')
          self.load_markets()
          market = self.market(symbol)
          defaultType = self.safe_string_2(self.options, 'fetchOrders', 'defaultType', market['type'])
          type = self.safe_string(params, 'type', defaultType)
          method = 'privateGetAllOrders'
          if type == 'future':
              method = 'fapiPrivateGetAllOrders'
          elif type == 'delivery':
              method = 'dapiPrivateGetAllOrders'
          elif type == 'margin':
              method = 'sapiGetMarginAllOrders'
          request = {
              'symbol': market['id'],
          }
          if since is not None:
              request['startTime'] = since
          if limit is not None:
              request['limit'] = limit
          query = self.omit(params, 'type')
          response = getattr(self, method)(self.extend(request, query))
          #
          #  spot
          #
          #     [
          #         {
          #             "symbol": "LTCBTC",
          #             "orderId": 1,
          #             "clientOrderId": "myOrder1",
          #             "price": "0.1",
          #             "origQty": "1.0",
          #             "executedQty": "0.0",
          #             "cummulativeQuoteQty": "0.0",
          #             "status": "NEW",
          #             "timeInForce": "GTC",
          #             "type": "LIMIT",
          #             "side": "BUY",
          #             "stopPrice": "0.0",
          #             "icebergQty": "0.0",
          #             "time": 1499827319559,
          #             "updateTime": 1499827319559,
          #             "isWorking": True
          #         }
          #     ]
          #
          #  futures
          #
          #     [
          #         {
          #             "symbol": "BTCUSDT",
          #             "orderId": 1,
          #             "clientOrderId": "myOrder1",
          #             "price": "0.1",
          #             "origQty": "1.0",
          #             "executedQty": "1.0",
          #             "cumQuote": "10.0",
          #             "status": "NEW",
          #             "timeInForce": "GTC",
          #             "type": "LIMIT",
          #             "side": "BUY",
          #             "stopPrice": "0.0",
          #             "updateTime": 1499827319559
          #         }
          #     ]
          #
          return self.parse_orders(response, market, since, limit)
  
      def fetch_open_orders(self, symbol=None, since=None, limit=None, params={}):
          self.load_markets()
          market = None
          query = None
          type = None
          request = {}
          if symbol is not None:
              market = self.market(symbol)
              request['symbol'] = market['id']
              defaultType = self.safe_string_2(self.options, 'fetchOpenOrders', 'defaultType', market['type'])
              type = self.safe_string(params, 'type', defaultType)
              query = self.omit(params, 'type')
          elif self.options['warnOnFetchOpenOrdersWithoutSymbol']:
              symbols = self.symbols
              numSymbols = len(symbols)
              fetchOpenOrdersRateLimit = int(numSymbols / 2)
              raise ExchangeError(self.id + ' fetchOpenOrders WARNING: fetching open orders without specifying a symbol is rate-limited to one call per ' + str(fetchOpenOrdersRateLimit) + ' seconds. Do not call self method frequently to avoid ban. Set ' + self.id + '.options["warnOnFetchOpenOrdersWithoutSymbol"] = False to suppress self warning message.')
          else:
              defaultType = self.safe_string_2(self.options, 'fetchOpenOrders', 'defaultType', 'spot')
              type = self.safe_string(params, 'type', defaultType)
              query = self.omit(params, 'type')
          method = 'privateGetOpenOrders'
          if type == 'future':
              method = 'fapiPrivateGetOpenOrders'
          elif type == 'delivery':
              method = 'dapiPrivateGetOpenOrders'
          elif type == 'margin':
              method = 'sapiGetMarginOpenOrders'
          response = getattr(self, method)(self.extend(request, query))
          return self.parse_orders(response, market, since, limit)
  
      def fetch_closed_orders(self, symbol=None, since=None, limit=None, params={}):
          orders = self.fetch_orders(symbol, since, limit, params)
          return self.filter_by(orders, 'status', 'closed')
  
      def cancel_order(self, id, symbol=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' cancelOrder() requires a symbol argument')
          self.load_markets()
          market = self.market(symbol)
          defaultType = self.safe_string_2(self.options, 'fetchOpenOrders', 'defaultType', market['type'])
          type = self.safe_string(params, 'type', defaultType)
          # https://github.com/ccxt/ccxt/issues/6507
          origClientOrderId = self.safe_value_2(params, 'origClientOrderId', 'clientOrderId')
          request = {
              'symbol': market['id'],
              # 'orderId': id,
              # 'origClientOrderId': id,
          }
          if origClientOrderId is None:
              request['orderId'] = id
          else:
              request['origClientOrderId'] = origClientOrderId
          method = 'privateDeleteOrder'
          if type == 'future':
              method = 'fapiPrivateDeleteOrder'
          elif type == 'delivery':
              method = 'dapiPrivateDeleteOrder'
          elif type == 'margin':
              method = 'sapiDeleteMarginOrder'
          query = self.omit(params, ['type', 'origClientOrderId', 'clientOrderId'])
          response = getattr(self, method)(self.extend(request, query))
          return self.parse_order(response)
  
      def cancel_all_orders(self, symbol=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' cancelAllOrders() requires a symbol argument')
          self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          defaultType = self.safe_string_2(self.options, 'cancelAllOrders', 'defaultType', 'spot')
          type = self.safe_string(params, 'type', defaultType)
          query = self.omit(params, 'type')
          method = 'privateDeleteOpenOrders'
          if type == 'margin':
              method = 'sapiDeleteMarginOpenOrders'
          elif type == 'future':
              method = 'fapiPrivateDeleteAllOpenOrders'
          elif type == 'delivery':
              method = 'dapiPrivateDeleteAllOpenOrders'
          response = getattr(self, method)(self.extend(request, query))
          if isinstance(response, list):
              return self.parse_orders(response, market)
          else:
              return response
  
      def fetch_positions(self, symbols=None, params={}):
          self.load_markets()
          defaultType = self.safe_string(self.options, 'defaultType', 'future')
          type = self.safe_string(params, 'type', defaultType)
          params = self.omit(params, 'type')
          options = self.safe_value(self.options, 'fetchPositions', {})
          defaultMethod = 'dapiPrivateGetAccount' if (type == 'delivery') else 'fapiPrivateV2GetAccount'
          method = self.safe_string(options, type, defaultMethod)
          response = getattr(self, method)(params)
          #
          # futures, delivery
          #
          #     {
          #         "feeTier":0,
          #         "canTrade":true,
          #         "canDeposit":true,
          #         "canWithdraw":true,
          #         "updateTime":0,
          #         "assets":[
          #             {
          #                 "asset":"ETH",
          #                 "walletBalance":"0.09886711",
          #                 "unrealizedProfit":"0.00000000",
          #                 "marginBalance":"0.09886711",
          #                 "maintMargin":"0.00000000",
          #                 "initialMargin":"0.00000000",
          #                 "positionInitialMargin":"0.00000000",
          #                 "openOrderInitialMargin":"0.00000000",
          #                 "maxWithdrawAmount":"0.09886711",
          #                 "crossWalletBalance":"0.09886711",
          #                 "crossUnPnl":"0.00000000",
          #                 "availableBalance":"0.09886711"
          #             }
          #         ],
          #         "positions":[
          #             {
          #                 "symbol":"BTCUSD_201225",
          #                 "initialMargin":"0",
          #                 "maintMargin":"0",
          #                 "unrealizedProfit":"0.00000000",
          #                 "positionInitialMargin":"0",
          #                 "openOrderInitialMargin":"0",
          #                 "leverage":"20",
          #                 "isolated":false,
          #                 "positionSide":"BOTH",
          #                 "entryPrice":"0.00000000",
          #                 "maxQty":"250",  # "maxNotional" on futures
          #             },
          #         ]
          #     }
          #
          # fapiPrivateGetPositionRisk, dapiPrivateGetPositionRisk
          #
          # [
          #   {
          #     symbol: 'XRPUSD_210625',
          #     positionAmt: '0',
          #     entryPrice: '0.00000000',
          #     markPrice: '0.00000000',
          #     unRealizedProfit: '0.00000000',
          #     liquidationPrice: '0',
          #     leverage: '20',
          #     maxQty: '500000',
          #     marginType: 'cross',
          #     isolatedMargin: '0.00000000',
          #     isAutoAddMargin: 'false',
          #     positionSide: 'BOTH',
          #     notionalValue: '0',
          #     isolatedWallet: '0'
          #   },
          #   {
          #     symbol: 'BTCUSD_210326',
          #     positionAmt: '1',
          #     entryPrice: '60665.79999885',
          #     markPrice: '60696.76856843',
          #     unRealizedProfit: '0.00000084',
          #     liquidationPrice: '58034.68208092',
          #     leverage: '20',
          #     maxQty: '50',
          #     marginType: 'isolated',
          #     isolatedMargin: '0.00008345',
          #     isAutoAddMargin: 'false',
          #     positionSide: 'BOTH',
          #     notionalValue: '0.00164753',
          #     isolatedWallet: '0.00008261'
          #   },
          # ]
          #
          return self.safe_value(response, 'positions', response)
  
      def fetch_my_trades(self, symbol=None, since=None, limit=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' fetchMyTrades() requires a symbol argument')
          self.load_markets()
          market = self.market(symbol)
          defaultType = self.safe_string_2(self.options, 'fetchMyTrades', 'defaultType', market['type'])
          type = self.safe_string(params, 'type', defaultType)
          params = self.omit(params, 'type')
          method = None
          if type == 'spot':
              method = 'privateGetMyTrades'
          elif type == 'margin':
              method = 'sapiGetMarginMyTrades'
          elif type == 'future':
              method = 'fapiPrivateGetUserTrades'
          elif type == 'delivery':
              method = 'dapiPrivateGetUserTrades'
          request = {
              'symbol': market['id'],
          }
          if since is not None:
              request['startTime'] = since
          if limit is not None:
              request['limit'] = limit
          response = getattr(self, method)(self.extend(request, params))
          #
          # spot trade
          #
          #     [
          #         {
          #             "symbol": "BNBBTC",
          #             "id": 28457,
          #             "orderId": 100234,
          #             "price": "4.00000100",
          #             "qty": "12.00000000",
          #             "commission": "10.10000000",
          #             "commissionAsset": "BNB",
          #             "time": 1499865549590,
          #             "isBuyer": True,
          #             "isMaker": False,
          #             "isBestMatch": True,
          #         }
          #     ]
          #
          # futures trade
          #
          #     [
          #         {
          #             "accountId": 20,
          #             "buyer": False,
          #             "commission": "-0.07819010",
          #             "commissionAsset": "USDT",
          #             "counterPartyId": 653,
          #             "id": 698759,
          #             "maker": False,
          #             "orderId": 25851813,
          #             "price": "7819.01",
          #             "qty": "0.002",
          #             "quoteQty": "0.01563",
          #             "realizedPnl": "-0.91539999",
          #             "side": "SELL",
          #             "symbol": "BTCUSDT",
          #             "time": 1569514978020
          #         }
          #     ]
          #
          return self.parse_trades(response, market, since, limit)
  
      def fetch_my_dust_trades(self, symbol=None, since=None, limit=None, params={}):
          #
          # Binance provides an opportunity to trade insignificant(i.e. non-tradable and non-withdrawable)
          # token leftovers(of any asset) into `BNB` coin which in turn can be used to pay trading fees with it.
          # The corresponding trades history is called the `Dust Log` and can be requested via the following end-point:
          # https://github.com/binance-exchange/binance-official-api-docs/blob/master/wapi-api.md#dustlog-user_data
          #
          self.load_markets()
          response = self.wapiGetUserAssetDribbletLog(params)
          # {success:    True,
          #   results: {total:    1,
          #               rows: [{    transfered_total: "1.06468458",
          #                         service_charge_total: "0.02172826",
          #                                      tran_id: 2701371634,
          #                                         logs: [{             tranId:  2701371634,
          #                                                   serviceChargeAmount: "0.00012819",
          #                                                                   uid: "35103861",
          #                                                                amount: "0.8012",
          #                                                           operateTime: "2018-10-07 17:56:07",
          #                                                      transferedAmount: "0.00628141",
          #                                                             fromAsset: "ADA"                  }],
          #                                 operate_time: "2018-10-07 17:56:06"                                }]}}
          results = self.safe_value(response, 'results', {})
          rows = self.safe_value(results, 'rows', [])
          data = []
          for i in range(0, len(rows)):
              logs = rows[i]['logs']
              for j in range(0, len(logs)):
                  logs[j]['isDustTrade'] = True
                  data.append(logs[j])
          trades = self.parse_trades(data, None, since, limit)
          return self.filter_by_since_limit(trades, since, limit)
  
      def parse_dust_trade(self, trade, market=None):
          # {             tranId:  2701371634,
          #   serviceChargeAmount: "0.00012819",
          #                   uid: "35103861",
          #                amount: "0.8012",
          #           operateTime: "2018-10-07 17:56:07",
          #      transferedAmount: "0.00628141",
          #             fromAsset: "ADA"                  },
          orderId = self.safe_string(trade, 'tranId')
          timestamp = self.parse8601(self.safe_string(trade, 'operateTime'))
          tradedCurrency = self.safe_currency_code(self.safe_string(trade, 'fromAsset'))
          earnedCurrency = self.currency('BNB')['code']
          applicantSymbol = earnedCurrency + '/' + tradedCurrency
          tradedCurrencyIsQuote = False
          if applicantSymbol in self.markets:
              tradedCurrencyIsQuote = True
          #
          # Warning
          # Binance dust trade `fee` is already excluded from the `BNB` earning reported in the `Dust Log`.
          # So the parser should either set the `fee.cost` to `0` or add it on top of the earned
          # BNB `amount`(or `cost` depending on the trade `side`). The second of the above options
          # is much more illustrative and therefore preferable.
          #
          fee = {
              'currency': earnedCurrency,
              'cost': self.safe_number(trade, 'serviceChargeAmount'),
          }
          symbol = None
          amount = None
          cost = None
          side = None
          if tradedCurrencyIsQuote:
              symbol = applicantSymbol
              amount = self.sum(self.safe_number(trade, 'transferedAmount'), fee['cost'])
              cost = self.safe_number(trade, 'amount')
              side = 'buy'
          else:
              symbol = tradedCurrency + '/' + earnedCurrency
              amount = self.safe_number(trade, 'amount')
              cost = self.sum(self.safe_number(trade, 'transferedAmount'), fee['cost'])
              side = 'sell'
          price = None
          if cost is not None:
              if amount:
                  price = cost / amount
          id = None
          type = None
          takerOrMaker = None
          return {
              'id': id,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'symbol': symbol,
              'order': orderId,
              'type': type,
              'takerOrMaker': takerOrMaker,
              'side': side,
              'amount': amount,
              'price': price,
              'cost': cost,
              'fee': fee,
              'info': trade,
          }
  
      def fetch_deposits(self, code=None, since=None, limit=None, params={}):
          self.load_markets()
          currency = None
          request = {}
          if code is not None:
              currency = self.currency(code)
              request['asset'] = currency['id']
          if since is not None:
              request['startTime'] = since
              # max 3 months range https://github.com/ccxt/ccxt/issues/6495
              request['endTime'] = self.sum(since, 7776000000)
          response = self.wapiGetDepositHistory(self.extend(request, params))
          #
          #     {    success:    True,
          #       depositList: [{insertTime:  1517425007000,
          #                            amount:  0.3,
          #                           address: "0x0123456789abcdef",
          #                        addressTag: "",
          #                              txId: "0x0123456789abcdef",
          #                             asset: "ETH",
          #                            status:  1                                                                    }]}
          #
          return self.parse_transactions(response['depositList'], currency, since, limit)
  
      def fetch_withdrawals(self, code=None, since=None, limit=None, params={}):
          self.load_markets()
          currency = None
          request = {}
          if code is not None:
              currency = self.currency(code)
              request['asset'] = currency['id']
          if since is not None:
              request['startTime'] = since
              # max 3 months range https://github.com/ccxt/ccxt/issues/6495
              request['endTime'] = self.sum(since, 7776000000)
          response = self.wapiGetWithdrawHistory(self.extend(request, params))
          #
          #     {withdrawList: [{     amount:  14,
          #                             address: "0x0123456789abcdef...",
          #                         successTime:  1514489710000,
          #                      transactionFee:  0.01,
          #                          addressTag: "",
          #                                txId: "0x0123456789abcdef...",
          #                                  id: "0123456789abcdef...",
          #                               asset: "ETH",
          #                           applyTime:  1514488724000,
          #                              status:  6                       },
          #                       {     amount:  7600,
          #                             address: "0x0123456789abcdef...",
          #                         successTime:  1515323226000,
          #                      transactionFee:  0.01,
          #                          addressTag: "",
          #                                txId: "0x0123456789abcdef...",
          #                                  id: "0123456789abcdef...",
          #                               asset: "ICN",
          #                           applyTime:  1515322539000,
          #                              status:  6                       }  ],
          #            success:    True                                         }
          #
          return self.parse_transactions(response['withdrawList'], currency, since, limit)
  
      def parse_transaction_status_by_type(self, status, type=None):
          statusesByType = {
              'deposit': {
                  '0': 'pending',
                  '1': 'ok',
              },
              'withdrawal': {
                  '0': 'pending',  # Email Sent
                  '1': 'canceled',  # Cancelled(different from 1 = ok in deposits)
                  '2': 'pending',  # Awaiting Approval
                  '3': 'failed',  # Rejected
                  '4': 'pending',  # Processing
                  '5': 'failed',  # Failure
                  '6': 'ok',  # Completed
              },
          }
          statuses = self.safe_value(statusesByType, type, {})
          return self.safe_string(statuses, status, status)
  
      def parse_transaction(self, transaction, currency=None):
          #
          # fetchDeposits
          #
          #     {
          #         insertTime:  1517425007000,
          #         amount:  0.3,
          #         address: "0x0123456789abcdef",
          #         addressTag: "",
          #         txId: "0x0123456789abcdef",
          #         asset: "ETH",
          #         status:  1
          #     }
          #
          # fetchWithdrawals
          #
          #     {
          #         amount:  14,
          #         address: "0x0123456789abcdef...",
          #         successTime:  1514489710000,
          #         transactionFee:  0.01,
          #         addressTag: "",
          #         txId: "0x0123456789abcdef...",
          #         id: "0123456789abcdef...",
          #         asset: "ETH",
          #         applyTime:  1514488724000,
          #         status:  6
          #     }
          #
          id = self.safe_string(transaction, 'id')
          address = self.safe_string(transaction, 'address')
          tag = self.safe_string(transaction, 'addressTag')  # set but unused
          if tag is not None:
              if len(tag) < 1:
                  tag = None
          txid = self.safe_string(transaction, 'txId')
          if (txid is not None) and (txid.find('Internal transfer ') >= 0):
              txid = txid[18:]
          currencyId = self.safe_string(transaction, 'asset')
          code = self.safe_currency_code(currencyId, currency)
          timestamp = None
          insertTime = self.safe_integer(transaction, 'insertTime')
          applyTime = self.safe_integer(transaction, 'applyTime')
          type = self.safe_string(transaction, 'type')
          if type is None:
              if (insertTime is not None) and (applyTime is None):
                  type = 'deposit'
                  timestamp = insertTime
              elif (insertTime is None) and (applyTime is not None):
                  type = 'withdrawal'
                  timestamp = applyTime
          status = self.parse_transaction_status_by_type(self.safe_string(transaction, 'status'), type)
          amount = self.safe_number(transaction, 'amount')
          feeCost = self.safe_number(transaction, 'transactionFee')
          fee = None
          if feeCost is not None:
              fee = {'currency': code, 'cost': feeCost}
          updated = self.safe_integer(transaction, 'successTime')
          return {
              'info': transaction,
              'id': id,
              'txid': txid,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'address': address,
              'addressTo': address,
              'addressFrom': None,
              'tag': tag,
              'tagTo': tag,
              'tagFrom': None,
              'type': type,
              'amount': amount,
              'currency': code,
              'status': status,
              'updated': updated,
              'fee': fee,
          }
  
      def parse_transfer_status(self, status):
          statuses = {
              'CONFIRMED': 'ok',
          }
          return self.safe_string(statuses, status, status)
  
      def parse_transfer(self, transfer, currency=None):
          #
          # transfer
          #
          #     {
          #         "tranId":13526853623
          #     }
          #
          # fetchTransfers
          #
          #     {
          #         timestamp: 1614640878000,
          #         asset: 'USDT',
          #         amount: '25',
          #         type: 'MAIN_UMFUTURE',
          #         status: 'CONFIRMED',
          #         tranId: 43000126248
          #     }
          #
          id = self.safe_string(transfer, 'tranId')
          currencyId = self.safe_string(transfer, 'asset')
          code = self.safe_currency_code(currencyId, currency)
          amount = self.safe_number(transfer, 'amount')
          type = self.safe_string(transfer, 'type')
          fromAccount = None
          toAccount = None
          typesByAccount = self.safe_value(self.options, 'typesByAccount', {})
          if type is not None:
              parts = type.split('_')
              fromAccount = self.safe_value(parts, 0)
              toAccount = self.safe_value(parts, 1)
              fromAccount = self.safe_string(typesByAccount, fromAccount, fromAccount)
              toAccount = self.safe_string(typesByAccount, toAccount, toAccount)
          timestamp = self.safe_integer(transfer, 'timestamp')
          status = self.parse_transfer_status(self.safe_string(transfer, 'status'))
          return {
              'info': transfer,
              'id': id,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'currency': code,
              'amount': amount,
              'fromAccount': fromAccount,
              'toAccount': toAccount,
              'status': status,
          }
  
      def transfer(self, code, amount, fromAccount, toAccount, params={}):
          self.load_markets()
          currency = self.currency(code)
          type = self.safe_string(params, 'type')
          if type is None:
              accountsByType = self.safe_value(self.options, 'accountsByType', {})
              fromId = self.safe_string(accountsByType, fromAccount, fromAccount)
              toId = self.safe_string(accountsByType, toAccount, toAccount)
              if fromId is None:
                  keys = list(accountsByType.keys())
                  raise ExchangeError(self.id + ' fromAccount must be one of ' + ', '.join(keys))
              if toId is None:
                  keys = list(accountsByType.keys())
                  raise ExchangeError(self.id + ' toAccount must be one of ' + ', '.join(keys))
              type = fromId + '_' + toId
          request = {
              'asset': currency['id'],
              'amount': self.currency_to_precision(code, amount),
              'type': type,
          }
          response = self.sapiPostAssetTransfer(self.extend(request, params))
          #
          #     {
          #         "tranId":13526853623
          #     }
          #
          transfer = self.parse_transfer(response, currency)
          return self.extend(transfer, {
              'amount': amount,
              'currency': code,
              'fromAccount': fromAccount,
              'toAccount': toAccount,
          })
  
      def fetch_transfers(self, code=None, since=None, limit=None, params={}):
          self.load_markets()
          currency = self.currency(code)
          defaultType = self.safe_string_2(self.options, 'fetchTransfers', 'defaultType', 'spot')
          fromAccount = self.safe_string(params, 'fromAccount', defaultType)
          defaultTo = 'spot' if (fromAccount == 'future') else 'future'
          toAccount = self.safe_string(params, 'toAccount', defaultTo)
          type = self.safe_string(params, 'type')
          accountsByType = self.safe_value(self.options, 'accountsByType', {})
          fromId = self.safe_string(accountsByType, fromAccount)
          toId = self.safe_string(accountsByType, toAccount)
          if type is None:
              if fromId is None:
                  keys = list(accountsByType.keys())
                  raise ExchangeError(self.id + ' fromAccount parameter must be one of ' + ', '.join(keys))
              if toId is None:
                  keys = list(accountsByType.keys())
                  raise ExchangeError(self.id + ' toAccount parameter must be one of ' + ', '.join(keys))
              type = fromId + '_' + toId
          request = {
              'type': type,
          }
          if since is not None:
              request['startTime'] = since
          if limit is not None:
              request['size'] = limit
          response = self.sapiGetAssetTransfer(self.extend(request, params))
          #
          #     {
          #         total: 3,
          #         rows: [
          #             {
          #                 timestamp: 1614640878000,
          #                 asset: 'USDT',
          #                 amount: '25',
          #                 type: 'MAIN_UMFUTURE',
          #                 status: 'CONFIRMED',
          #                 tranId: 43000126248
          #             },
          #         ]
          #     }
          #
          rows = self.safe_value(response, 'rows', [])
          return self.parse_transfers(rows, currency, since, limit)
  
      def fetch_deposit_address(self, code, params={}):
          self.load_markets()
          currency = self.currency(code)
          request = {
              'coin': currency['id'],
              # 'network': 'ETH',  # 'BSC', 'XMR', you can get network and isDefault in networkList in the response of sapiGetCapitalConfigDetail
          }
          # has support for the 'network' parameter
          # https://binance-docs.github.io/apidocs/spot/en/#deposit-address-supporting-network-user_data
          response = self.sapiGetCapitalDepositAddress(self.extend(request, params))
          #
          #     {
          #         currency: 'XRP',
          #         address: 'rEb8TK3gBgk5auZkwc6sHnwrGVJH8DuaLh',
          #         tag: '108618262',
          #         info: {
          #             coin: 'XRP',
          #             address: 'rEb8TK3gBgk5auZkwc6sHnwrGVJH8DuaLh',
          #             tag: '108618262',
          #             url: 'https://bithomp.com/explorer/rEb8TK3gBgk5auZkwc6sHnwrGVJH8DuaLh'
          #         }
          #     }
          #
          address = self.safe_string(response, 'address')
          tag = self.safe_string(response, 'tag')
          self.check_address(address)
          return {
              'currency': code,
              'address': address,
              'tag': tag,
              'info': response,
          }
  
      def fetch_funding_fees(self, codes=None, params={}):
          response = self.wapiGetAssetDetail(params)
          #
          #     {
          #         "success": True,
          #         "assetDetail": {
          #             "CTR": {
          #                 "minWithdrawAmount": "70.00000000",  #min withdraw amount
          #                 "depositStatus": False,//deposit status
          #                 "withdrawFee": 35,  # withdraw fee
          #                 "withdrawStatus": True,  #withdraw status
          #                 "depositTip": "Delisted, Deposit Suspended"  #reason
          #             },
          #             "SKY": {
          #                 "minWithdrawAmount": "0.02000000",
          #                 "depositStatus": True,
          #                 "withdrawFee": 0.01,
          #                 "withdrawStatus": True
          #             }
          #         }
          #     }
          #
          detail = self.safe_value(response, 'assetDetail', {})
          ids = list(detail.keys())
          withdrawFees = {}
          for i in range(0, len(ids)):
              id = ids[i]
              code = self.safe_currency_code(id)
              withdrawFees[code] = self.safe_number(detail[id], 'withdrawFee')
          return {
              'withdraw': withdrawFees,
              'deposit': {},
              'info': response,
          }
  
      def withdraw(self, code, amount, address, tag=None, params={}):
          self.check_address(address)
          self.load_markets()
          currency = self.currency(code)
          # name is optional, can be overrided via params
          name = address[0:20]
          request = {
              'asset': currency['id'],
              'address': address,
              'amount': float(amount),
              'name': name,  # name is optional, can be overrided via params
              # https://binance-docs.github.io/apidocs/spot/en/#withdraw-sapi
              # issue sapiGetCapitalConfigGetall() to get networks for withdrawing USDT ERC20 vs USDT Omni
              # 'network': 'ETH',  # 'BTC', 'TRX', etc, optional
          }
          if tag is not None:
              request['addressTag'] = tag
          response = self.wapiPostWithdraw(self.extend(request, params))
          return {
              'info': response,
              'id': self.safe_string(response, 'id'),
          }
  
      def parse_trading_fee(self, fee, market=None):
          #
          #     {
          #         "symbol": "ADABNB",
          #         "maker": 0.9000,
          #         "taker": 1.0000
          #     }
          #
          marketId = self.safe_string(fee, 'symbol')
          symbol = self.safe_symbol(marketId)
          return {
              'info': fee,
              'symbol': symbol,
              'maker': self.safe_number(fee, 'maker'),
              'taker': self.safe_number(fee, 'taker'),
          }
  
      def fetch_trading_fee(self, symbol, params={}):
          self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          response = self.wapiGetTradeFee(self.extend(request, params))
          #
          #     {
          #         "tradeFee": [
          #             {
          #                 "symbol": "ADABNB",
          #                 "maker": 0.9000,
          #                 "taker": 1.0000
          #             }
          #         ],
          #         "success": True
          #     }
          #
          tradeFee = self.safe_value(response, 'tradeFee', [])
          first = self.safe_value(tradeFee, 0, {})
          return self.parse_trading_fee(first)
  
      def fetch_trading_fees(self, params={}):
          self.load_markets()
          response = self.wapiGetTradeFee(params)
          #
          #     {
          #         "tradeFee": [
          #             {
          #                 "symbol": "ADABNB",
          #                 "maker": 0.9000,
          #                 "taker": 1.0000
          #             }
          #         ],
          #         "success": True
          #     }
          #
          tradeFee = self.safe_value(response, 'tradeFee', [])
          result = {}
          for i in range(0, len(tradeFee)):
              fee = self.parse_trading_fee(tradeFee[i])
              symbol = fee['symbol']
              result[symbol] = fee
          return result
  
      def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
          if not (api in self.urls['api']):
              raise NotSupported(self.id + ' does not have a testnet/sandbox URL for ' + api + ' endpoints')
          url = self.urls['api'][api]
          url += '/' + path
          if api == 'wapi':
              url += '.html'
          if path == 'historicalTrades':
              if self.apiKey:
                  headers = {
                      'X-MBX-APIKEY': self.apiKey,
                  }
              else:
                  raise AuthenticationError(self.id + ' historicalTrades endpoint requires `apiKey` credential')
          userDataStream = (path == 'userDataStream') or (path == 'listenKey')
          if userDataStream:
              if self.apiKey:
                  # v1 special case for userDataStream
                  headers = {
                      'X-MBX-APIKEY': self.apiKey,
                      'Content-Type': 'application/x-www-form-urlencoded',
                  }
                  if method != 'GET':
                      body = self.urlencode(params)
              else:
                  raise AuthenticationError(self.id + ' userDataStream endpoint requires `apiKey` credential')
          elif (api == 'private') or (api == 'sapi') or (api == 'wapi' and path != 'systemStatus') or (api == 'dapiPrivate') or (api == 'fapiPrivate') or (api == 'fapiPrivateV2'):
              self.check_required_credentials()
              query = None
              recvWindow = self.safe_integer(self.options, 'recvWindow', 5000)
              if (api == 'sapi') and (path == 'asset/dust'):
                  query = self.urlencode_with_array_repeat(self.extend({
                      'timestamp': self.nonce(),
                      'recvWindow': recvWindow,
                  }, params))
              elif (path == 'batchOrders') or (path.find('sub-account') >= 0):
                  query = self.rawencode(self.extend({
                      'timestamp': self.nonce(),
                      'recvWindow': recvWindow,
                  }, params))
              else:
                  query = self.urlencode(self.extend({
                      'timestamp': self.nonce(),
                      'recvWindow': recvWindow,
                  }, params))
              signature = self.hmac(self.encode(query), self.encode(self.secret))
              query += '&' + 'signature=' + signature
              headers = {
                  'X-MBX-APIKEY': self.apiKey,
              }
              if (method == 'GET') or (method == 'DELETE') or (api == 'wapi'):
                  url += '?' + query
              else:
                  body = query
                  headers['Content-Type'] = 'application/x-www-form-urlencoded'
          else:
              if params:
                  url += '?' + self.urlencode(params)
          return {'url': url, 'method': method, 'body': body, 'headers': headers}
  
      def handle_errors(self, code, reason, url, method, headers, body, response, requestHeaders, requestBody):
          if (code == 418) or (code == 429):
              raise DDoSProtection(self.id + ' ' + str(code) + ' ' + reason + ' ' + body)
          # error response in a form: {"code": -1013, "msg": "Invalid quantity."}
          # following block cointains legacy checks against message patterns in "msg" property
          # will switch "code" checks eventually, when we know all of them
          if code >= 400:
              if body.find('Price * QTY is zero or less') >= 0:
                  raise InvalidOrder(self.id + ' order cost = amount * price is zero or less ' + body)
              if body.find('LOT_SIZE') >= 0:
                  raise InvalidOrder(self.id + ' order amount should be evenly divisible by lot size ' + body)
              if body.find('PRICE_FILTER') >= 0:
                  raise InvalidOrder(self.id + ' order price is invalid, i.e. exceeds allowed price precision, exceeds min price or max price limits or is invalid float value in general, use self.price_to_precision(symbol, amount) ' + body)
          if response is None:
              return  # fallback to default error handler
          # check success value for wapi endpoints
          # response in format {'msg': 'The coin does not exist.', 'success': True/false}
          success = self.safe_value(response, 'success', True)
          if not success:
              message = self.safe_string(response, 'msg')
              parsedMessage = None
              if message is not None:
                  try:
                      parsedMessage = json.loads(message)
                  except Exception as e:
                      # do nothing
                      parsedMessage = None
                  if parsedMessage is not None:
                      response = parsedMessage
          message = self.safe_string(response, 'msg')
          if message is not None:
              self.throw_exactly_matched_exception(self.exceptions, message, self.id + ' ' + message)
          # checks against error codes
          error = self.safe_string(response, 'code')
          if error is not None:
              # https://github.com/ccxt/ccxt/issues/6501
              # https://github.com/ccxt/ccxt/issues/7742
              if (error == '200') or (error == '0'):
                  return
              # a workaround for {"code":-2015,"msg":"Invalid API-key, IP, or permissions for action."}
              # despite that their message is very confusing, it is raised by Binance
              # on a temporary ban, the API key is valid, but disabled for a while
              if (error == '-2015') and self.options['hasAlreadyAuthenticatedSuccessfully']:
                  raise DDoSProtection(self.id + ' temporary banned: ' + body)
              feedback = self.id + ' ' + body
              self.throw_exactly_matched_exception(self.exceptions, error, feedback)
              raise ExchangeError(feedback)
          if not success:
              raise ExchangeError(self.id + ' ' + body)
  
      def request(self, path, api='public', method='GET', params={}, headers=None, body=None):
          response = self.fetch2(path, api, method, params, headers, body)
          # a workaround for {"code":-2015,"msg":"Invalid API-key, IP, or permissions for action."}
          if (api == 'private') or (api == 'wapi'):
              self.options['hasAlreadyAuthenticatedSuccessfully'] = True
          return response
  