docstr: create an orders dict which mocks the .orders object
  :param asset: TradingPair
  :param last_order: bool, adds another order to the dict.
                      mocks the functionality of the fetchOrder methods
  :return: dict(Order)
docstr_tok: ["create","an","orders","dict","which","mocks","the",".orders","object",":","param","asset",":","TradingPair",":","param","last_order",":","bool",",","adds","another","order","to","the","dict",".","mocks","the","functionality","of","the","fetchOrder","methods",":","return",":","dict","(","Order",")"]
code: def create_orders_dict(self, asset, last_order):
      """
      create an orders dict which mocks the .orders object
      :param asset: TradingPair
      :param last_order: bool, adds another order to the dict.
                          mocks the functionality of the fetchOrder methods
      :return: dict(Order)
      """
      orders = dict()
      orders["208612980769"] = Order(
          dt=pd.to_datetime("2018-05-01 17:34", utc=True),
          asset=asset,
          amount=2,
          stop=None,
          limit=0.0025,
          id="208612980769",
      )
      orders["656797594"] = Order(
          dt=pd.to_datetime("2018-05-01 18:34", utc=True),
          asset=asset,
          amount=1,
          stop=None,
          limit=0.0027,
          id="656797594",
      )
      orders["656797494"] = Order(
          dt=pd.to_datetime("2018-05-01 18:54", utc=True),
          asset=asset,
          amount=7,
          stop=None,
          limit=0.00246,
          id="656797494",
      )
      if last_order:
          orders["111"] = Order(
              dt=pd.to_datetime("2018-05-01 19:54", utc=True),
              asset=asset,
              amount=2,
              stop=None,
              limit=0.00254,
              id="111",
          )
      return orders
  
imports: from logbook import Logger
  from mock import patch, create_autospec, MagicMock, Mock
  import pandas
  from ccxt.base.errors import RequestTimeout
  from catalyst.exchange.exchange_errors import ExchangeRequestError
  from .base import BaseExchangeTestCase
  from catalyst.exchange.ccxt.ccxt_exchange import CCXT
  from catalyst.exchange.exchange_execution import ExchangeLimitOrder
  from catalyst.exchange.utils.exchange_utils import get_exchange_auth
  from catalyst.finance.order import Order
label_desc: Use image node_id 2 for calling the TestCCXT obj's underlying member method code with example usage: obj.create_orders_dict(asset, last_order) and returns: orders