text: /*
   * Copyright (c) 2015 Cryptonomex, Inc., and contributors.
   *
   * The MIT License
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  #pragma once
  
  #include <graphene/app/api.hpp>
  #include <graphene/utilities/key_conversion.hpp>
  
  using namespace graphene::app;
  using namespace graphene::chain;
  using namespace graphene::utilities;
  using namespace std;
  
  namespace fc
  {
     void to_variant(const account_multi_index_type& accts, variant& vo);
     void from_variant(const variant &var, account_multi_index_type &vo);
  }
  
  namespace graphene { namespace wallet {
  
  typedef uint16_t transaction_handle_type;
  
  /**
   * This class takes a variant and turns it into an object
   * of the given type, with the new operator.
   */
  
  object* create_object( const variant& v );
  
  struct plain_keys
  {
     map<public_key_type, string>  keys;
     fc::sha512                    checksum;
  };
  
  struct brain_key_info
  {
     string brain_priv_key;
     string wif_priv_key;
     public_key_type pub_key;
  };
  
  
  /**
   *  Contains the confirmation receipt the sender must give the receiver and
   *  the meta data about the receipt that helps the sender identify which receipt is
   *  for the receiver and which is for the change address.
   */
  struct blind_confirmation 
  {
     struct output
     {
        string                          label;
        public_key_type                 pub_key;
        stealth_confirmation::memo_data decrypted_memo;
        stealth_confirmation            confirmation;
        authority                       auth;
        string                          confirmation_receipt;
     };
  
     signed_transaction     trx;
     vector<output>         outputs;
  };
  
  struct blind_balance
  {
     asset                     amount;
     public_key_type           from; ///< the account this balance came from
     public_key_type           to; ///< the account this balance is logically associated with
     public_key_type           one_time_key; ///< used to derive the authority key and blinding factor
     fc::sha256                blinding_factor;
     fc::ecc::commitment_type  commitment;
     bool                      used = false;
  };
  
  struct blind_receipt
  {
     std::pair<public_key_type,fc::time_point>        from_date()const { return std::make_pair(from_key,date); }
     std::pair<public_key_type,fc::time_point>        to_date()const   { return std::make_pair(to_key,date);   }
     std::tuple<public_key_type,asset_id_type,bool>   to_asset_used()const   { return std::make_tuple(to_key,amount.asset_id,used);   }
     const commitment_type& commitment()const        { return data.commitment; }
  
     fc::time_point                  date;
     public_key_type                 from_key;
     string                          from_label;
     public_key_type                 to_key;
     string                          to_label;
     asset                           amount;
     string                          memo;
     authority                       control_authority;
     stealth_confirmation::memo_data data;
     bool                            used = false;
     stealth_confirmation            conf;
  };
  
  struct by_from;
  struct by_to;
  struct by_to_asset_used;
  struct by_commitment;
  
  typedef multi_index_container< blind_receipt,
     indexed_by<
        ordered_unique< tag<by_commitment>, const_mem_fun< blind_receipt, const commitment_type&, &blind_receipt::commitment > >,
        ordered_unique< tag<by_to>, const_mem_fun< blind_receipt, std::pair<public_key_type,fc::time_point>, &blind_receipt::to_date > >,
        ordered_non_unique< tag<by_to_asset_used>, const_mem_fun< blind_receipt, std::tuple<public_key_type,asset_id_type,bool>, &blind_receipt::to_asset_used > >,
        ordered_unique< tag<by_from>, const_mem_fun< blind_receipt, std::pair<public_key_type,fc::time_point>, &blind_receipt::from_date > >
     >
  > blind_receipt_index_type;
  
  
  struct key_label
  {
     string          label;
     public_key_type key;
  };
  
  
  struct by_label;
  struct by_key;
  typedef multi_index_container<
     key_label,
     indexed_by<
        ordered_unique< tag<by_label>, member< key_label, string, &key_label::label > >,
        ordered_unique< tag<by_key>, member< key_label, public_key_type, &key_label::key > >
     >
  > key_label_index_type;
  
  
  struct wallet_data
  {
     /** Chain ID this wallet is used with */
     chain_id_type chain_id;
     account_multi_index_type my_accounts;
     /// @return IDs of all accounts in @ref my_accounts
     vector<object_id_type> my_account_ids()const
     {
        vector<object_id_type> ids;
        ids.reserve(my_accounts.size());
        std::transform(my_accounts.begin(), my_accounts.end(), std::back_inserter(ids),
                       [](const account_object& ao) { return ao.id; });
        return ids;
     }
     /// Add acct to @ref my_accounts, or update it if it is already in @ref my_accounts
     /// @return true if the account was newly inserted; false if it was only updated
     bool update_account(const account_object& acct)
     {
        auto& idx = my_accounts.get<by_id>();
        auto itr = idx.find(acct.get_id());
        if( itr != idx.end() )
        {
           idx.replace(itr, acct);
           return false;
        } else {
           idx.insert(acct);
           return true;
        }
     }
  
     /** encrypted keys */
     vector<char>              cipher_keys;
  
     /** map an account to a set of extra keys that have been imported for that account */
     map<account_id_type, set<public_key_type> >  extra_keys;
  
     // map of account_name -> base58_private_key for
     //    incomplete account regs
     map<string, vector<string> > pending_account_registrations;
     map<string, string> pending_witness_registrations;
  
     key_label_index_type                                              labeled_keys;
     blind_receipt_index_type                                          blind_receipts;
  
     string                    ws_server = "ws://localhost:8090";
     string                    ws_user;
     string                    ws_password;
  };
  
  struct exported_account_keys
  {
      string account_name;
      vector<vector<char>> encrypted_private_keys;
      vector<public_key_type> public_keys;
  };
  
  struct exported_keys
  {
      fc::sha512 password_checksum;
      vector<exported_account_keys> account_keys;
  };
  
  struct approval_delta
  {
     vector<string> active_approvals_to_add;
     vector<string> active_approvals_to_remove;
     vector<string> owner_approvals_to_add;
     vector<string> owner_approvals_to_remove;
     vector<string> key_approvals_to_add;
     vector<string> key_approvals_to_remove;
  };
  
  struct worker_vote_delta
  {
     flat_set<worker_id_type> vote_for;
     flat_set<worker_id_type> vote_against;
     flat_set<worker_id_type> vote_abstain;
  };
  
  struct signed_block_with_info : public signed_block
  {
     signed_block_with_info( const signed_block& block );
     signed_block_with_info( const signed_block_with_info& block ) = default;
  
     block_id_type block_id;
     public_key_type signing_key;
     vector< transaction_id_type > transaction_ids;
  };
  
  struct vesting_balance_object_with_info : public vesting_balance_object
  {
     vesting_balance_object_with_info( const vesting_balance_object& vbo, fc::time_point_sec now );
     vesting_balance_object_with_info( const vesting_balance_object_with_info& vbo ) = default;
  
     /**
      * How much is allowed to be withdrawn.
      */
     asset allowed_withdraw;
  
     /**
      * The time at which allowed_withdrawal was calculated.
      */
     fc::time_point_sec allowed_withdraw_time;
  };
  
  namespace detail {
  class wallet_api_impl;
  }
  
  /***
   * A utility class for performing various state-less actions that are related to wallets
   */
  class utility {
     public:
        /**
         * Derive any number of *possible* owner keys from a given brain key.
         *
         * NOTE: These keys may or may not match with the owner keys of any account.
         * This function is merely intended to assist with account or key recovery.
         *
         * @see suggest_brain_key()
         *
         * @param brain_key    Brain key
         * @param number_of_desired_keys  Number of desired keys
         * @return A list of keys that are deterministically derived from the brainkey
         */
        static vector<brain_key_info> derive_owner_keys_from_brain_key(string brain_key, int number_of_desired_keys = 1);
  };
  
  struct operation_detail {
     string                   memo;
     string                   description;
     operation_history_object op;
  };
  
  /**
   * This wallet assumes it is connected to the database server with a high-bandwidth, low-latency connection and
   * performs minimal caching. This API could be provided locally to be used by a web interface.
   */
  class wallet_api
  {
     public:
        wallet_api( const wallet_data& initial_data, fc::api<login_api> rapi );
        virtual ~wallet_api();
  
        bool copy_wallet_file( string destination_filename );
  
        fc::ecc::private_key derive_private_key(const std::string& prefix_string, int sequence_number) const;
  
        variant                           info();
        /** Returns info such as client version, git version of graphene/fc, version of boost, openssl.
         * @returns compile time info and client and dependencies versions
         */
        variant_object                    about() const;
        optional<signed_block_with_info>    get_block( uint32_t num );
        /** Returns the number of accounts registered on the blockchain
         * @returns the number of registered accounts
         */
        uint64_t                          get_account_count()const;
        /** Lists all accounts controlled by this wallet.
         * This returns a list of the full account objects for all accounts whose private keys 
         * we possess.
         * @returns a list of account objects
         */
        vector<account_object>            list_my_accounts();
        /** Lists all accounts registered in the blockchain.
         * This returns a list of all account names and their account ids, sorted by account name.
         *
         * Use the \c lowerbound and limit parameters to page through the list.  To retrieve all accounts,
         * start by setting \c lowerbound to the empty string \c "", and then each iteration, pass
         * the last account name returned as the \c lowerbound for the next \c list_accounts() call.
         *
         * @param lowerbound the name of the first account to return.  If the named account does not exist, 
         *                   the list will start at the account that comes after \c lowerbound
         * @param limit the maximum number of accounts to return (max: 1000)
         * @returns a list of accounts mapping account names to account ids
         */
        map<string,account_id_type>       list_accounts(const string& lowerbound, uint32_t limit);
        /** List the balances of an account.
         * Each account can have multiple balances, one for each type of asset owned by that 
         * account.  The returned list will only contain assets for which the account has a
         * nonzero balance
         * @param id the name or id of the account whose balances you want
         * @returns a list of the given account's balances
         */
        vector<asset>                     list_account_balances(const string& id);
        /** Lists all assets registered on the blockchain.
         * 
         * To list all assets, pass the empty string \c "" for the lowerbound to start
         * at the beginning of the list, and iterate as necessary.
         *
         * @param lowerbound  the symbol of the first asset to include in the list.
         * @param limit the maximum number of assets to return (max: 100)
         * @returns the list of asset objects, ordered by symbol
         */
        vector<asset_object>              list_assets(const string& lowerbound, uint32_t limit)const;
        
        /** Returns the most recent operations on the named account.
         *
         * This returns a list of operation history objects, which describe activity on the account.
         *
         * @param name the name or id of the account
         * @param limit the number of entries to return (starting from the most recent)
         * @returns a list of \c operation_history_objects
         */
        vector<operation_detail>  get_account_history(string name, int limit)const;
  
        /** Returns the relative operations on the named account from start number.
         *
         * @param name the name or id of the account
         * @param stop Sequence number of earliest operation.
         * @param limit the number of entries to return
         * @param start  the sequence number where to start looping back throw the history
         * @returns a list of \c operation_history_objects
         */
       vector<operation_detail>  get_relative_account_history(string name, uint32_t stop, int limit, uint32_t start)const;
  
        vector<bucket_object>             get_market_history(string symbol, string symbol2, uint32_t bucket, fc::time_point_sec start, fc::time_point_sec end)const;
        vector<limit_order_object>        get_limit_orders(string a, string b, uint32_t limit)const;
        vector<call_order_object>         get_call_orders(string a, uint32_t limit)const;
        vector<force_settlement_object>   get_settle_orders(string a, uint32_t limit)const;
        
        /** Returns the block chain's slowly-changing settings.
         * This object contains all of the properties of the blockchain that are fixed
         * or that change only once per maintenance interval (daily) such as the
         * current list of witnesses, committee_members, block interval, etc.
         * @see \c get_dynamic_global_properties() for frequently changing properties
         * @returns the global properties
         */
        global_property_object            get_global_properties() const;
  
        /** Returns the block chain's rapidly-changing properties.
         * The returned object contains information that changes every block interval
         * such as the head block number, the next witness, etc.
         * @see \c get_global_properties() for less-frequently changing properties
         * @returns the dynamic global properties
         */
        dynamic_global_property_object    get_dynamic_global_properties() const;
  
        /** Returns information about the given account.
         *
         * @param account_name_or_id the name or id of the account to provide information about
         * @returns the public account data stored in the blockchain
         */
        account_object                    get_account(string account_name_or_id) const;
  
        /** Returns information about the given asset.
         * @param asset_name_or_id the symbol or id of the asset in question
         * @returns the information about the asset stored in the block chain
         */
        asset_object                      get_asset(string asset_name_or_id) const;
  
        /** Returns the BitAsset-specific data for a given asset.
         * Market-issued assets's behavior are determined both by their "BitAsset Data" and
         * their basic asset data, as returned by \c get_asset().
         * @param asset_name_or_id the symbol or id of the BitAsset in question
         * @returns the BitAsset-specific data for this asset
         */
        asset_bitasset_data_object        get_bitasset_data(string asset_name_or_id)const;
  
        /** Lookup the id of a named account.
         * @param account_name_or_id the name of the account to look up
         * @returns the id of the named account
         */
        account_id_type                   get_account_id(string account_name_or_id) const;
  
        /**
         * Lookup the id of a named asset.
         * @param asset_name_or_id the symbol of an asset to look up
         * @returns the id of the given asset
         */
        asset_id_type                     get_asset_id(string asset_name_or_id) const;
  
        /**
         * Returns the blockchain object corresponding to the given id.
         *
         * This generic function can be used to retrieve any object from the blockchain
         * that is assigned an ID.  Certain types of objects have specialized convenience 
         * functions to return their objects -- e.g., assets have \c get_asset(), accounts 
         * have \c get_account(), but this function will work for any object.
         *
         * @param id the id of the object to return
         * @returns the requested object
         */
        variant                           get_object(object_id_type id) const;
  
        /** Returns the current wallet filename.  
         *
         * This is the filename that will be used when automatically saving the wallet.
         *
         * @see set_wallet_filename()
         * @return the wallet filename
         */
        string                            get_wallet_filename() const;
  
        /**
         * Get the WIF private key corresponding to a public key.  The
         * private key must already be in the wallet.
         */
        string                            get_private_key( public_key_type pubkey )const;
  
        /**
         * @ingroup Transaction Builder API
         */
        transaction_handle_type begin_builder_transaction();
        /**
         * @ingroup Transaction Builder API
         */
        void add_operation_to_builder_transaction(transaction_handle_type transaction_handle, const operation& op);
        /**
         * @ingroup Transaction Builder API
         */
        void replace_operation_in_builder_transaction(transaction_handle_type handle,
                                                      unsigned operation_index,
                                                      const operation& new_op);
        /**
         * @ingroup Transaction Builder API
         */
        asset set_fees_on_builder_transaction(transaction_handle_type handle, string fee_asset = GRAPHENE_SYMBOL);
        /**
         * @ingroup Transaction Builder API
         */
        transaction preview_builder_transaction(transaction_handle_type handle);
        /**
         * @ingroup Transaction Builder API
         */
        signed_transaction sign_builder_transaction(transaction_handle_type transaction_handle, bool broadcast = true);
        /**
         * @ingroup Transaction Builder API
         */
        signed_transaction propose_builder_transaction(
            transaction_handle_type handle,
            time_point_sec expiration = time_point::now() + fc::minutes(1),
            uint32_t review_period_seconds = 0,
            bool broadcast = true
           );
  
        signed_transaction propose_builder_transaction2(
           transaction_handle_type handle,
           string account_name_or_id,
           time_point_sec expiration = time_point::now() + fc::minutes(1),
           uint32_t review_period_seconds = 0,
           bool broadcast = true
          );
  
        /**
         * @ingroup Transaction Builder API
         */
        void remove_builder_transaction(transaction_handle_type handle);
  
        /** Checks whether the wallet has just been created and has not yet had a password set.
         *
         * Calling \c set_password will transition the wallet to the locked state.
         * @return true if the wallet is new
         * @ingroup Wallet Management
         */
        bool    is_new()const;
        
        /** Checks whether the wallet is locked (is unable to use its private keys).  
         *
         * This state can be changed by calling \c lock() or \c unlock().
         * @return true if the wallet is locked
         * @ingroup Wallet Management
         */
        bool    is_locked()const;
        
        /** Locks the wallet immediately.
         * @ingroup Wallet Management
         */
        void    lock();
        
        /** Unlocks the wallet.  
         *
         * The wallet remain unlocked until the \c lock is called
         * or the program exits.
         * @param password the password previously set with \c set_password()
         * @ingroup Wallet Management
         */
        void    unlock(string password);
        
        /** Sets a new password on the wallet.
         *
         * The wallet must be either 'new' or 'unlocked' to
         * execute this command.
         * @ingroup Wallet Management
         */
        void    set_password(string password);
  
        /** Dumps all private keys owned by the wallet.
         *
         * The keys are printed in WIF format.  You can import these keys into another wallet
         * using \c import_key()
         * @returns a map containing the private keys, indexed by their public key 
         */
        map<public_key_type, string> dump_private_keys();
  
        /** Returns a list of all commands supported by the wallet API.
         *
         * This lists each command, along with its arguments and return types.
         * For more detailed help on a single command, use \c get_help()
         *
         * @returns a multi-line string suitable for displaying on a terminal
         */
        string  help()const;
  
        /** Returns detailed help on a single API command.
         * @param method the name of the API command you want help with
         * @returns a multi-line string suitable for displaying on a terminal
         */
        string  gethelp(const string& method)const;
  
        /** Loads a specified Graphene wallet.
         *
         * The current wallet is closed before the new wallet is loaded.
         *
         * @warning This does not change the filename that will be used for future
         * wallet writes, so this may cause you to overwrite your original
         * wallet unless you also call \c set_wallet_filename()
         *
         * @param wallet_filename the filename of the wallet JSON file to load.
         *                        If \c wallet_filename is empty, it reloads the
         *                        existing wallet file
         * @returns true if the specified wallet is loaded
         */
        bool    load_wallet_file(string wallet_filename = "");
  
        /** Saves the current wallet to the given filename.
         * 
         * @warning This does not change the wallet filename that will be used for future
         * writes, so think of this function as 'Save a Copy As...' instead of
         * 'Save As...'.  Use \c set_wallet_filename() to make the filename
         * persist.
         * @param wallet_filename the filename of the new wallet JSON file to create
         *                        or overwrite.  If \c wallet_filename is empty,
         *                        save to the current filename.
         */
        void    save_wallet_file(string wallet_filename = "");
  
        /** Sets the wallet filename used for future writes.
         *
         * This does not trigger a save, it only changes the default filename
         * that will be used the next time a save is triggered.
         *
         * @param wallet_filename the new filename to use for future saves
         */
        void    set_wallet_filename(string wallet_filename);
  
        /** Suggests a safe brain key to use for creating your account.
         * \c create_account_with_brain_key() requires you to specify a 'brain key',
         * a long passphrase that provides enough entropy to generate cyrptographic
         * keys.  This function will suggest a suitably random string that should
         * be easy to write down (and, with effort, memorize).
         * @returns a suggested brain_key
         */
        brain_key_info suggest_brain_key()const;
  
       /**
        * Derive any number of *possible* owner keys from a given brain key.
        *
        * NOTE: These keys may or may not match with the owner keys of any account.
        * This function is merely intended to assist with account or key recovery.
        *
        * @see suggest_brain_key()
        *
        * @param brain_key    Brain key
        * @param numberOfDesiredKeys  Number of desired keys
        * @return A list of keys that are deterministically derived from the brainkey
        */
       vector<brain_key_info> derive_owner_keys_from_brain_key(string brain_key, int number_of_desired_keys = 1) const;
  
       /**
        * Determine whether a textual representation of a public key
        * (in Base-58 format) is *currently* linked
        * to any *registered* (i.e. non-stealth) account on the blockchain
        * @param public_key Public key
        * @return Whether a public key is known
        */
       bool is_public_key_registered(string public_key) const;
  
        /** Converts a signed_transaction in JSON form to its binary representation.
         *
         * TODO: I don't see a broadcast_transaction() function, do we need one?
         *
         * @param tx the transaction to serialize
         * @returns the binary form of the transaction.  It will not be hex encoded, 
         *          this returns a raw string that may have null characters embedded 
         *          in it
         */
        string serialize_transaction(signed_transaction tx) const;
  
        /** Imports the private key for an existing account.
         *
         * The private key must match either an owner key or an active key for the
         * named account.  
         *
         * @see dump_private_keys()
         *
         * @param account_name_or_id the account owning the key
         * @param wif_key the private key in WIF format
         * @returns true if the key was imported
         */
        bool import_key(string account_name_or_id, string wif_key);
  
        map<string, bool> import_accounts( string filename, string password );
  
        bool import_account_keys( string filename, string password, string src_account_name, string dest_account_name );
  
        /**
         * This call will construct transaction(s) that will claim all balances controled
         * by wif_keys and deposit them into the given account.
         */
        vector< signed_transaction > import_balance( string account_name_or_id, const vector<string>& wif_keys, bool broadcast );
  
        /** Transforms a brain key to reduce the chance of errors when re-entering the key from memory.
         *
         * This takes a user-supplied brain key and normalizes it into the form used
         * for generating private keys.  In particular, this upper-cases all ASCII characters
         * and collapses multiple spaces into one.
         * @param s the brain key as supplied by the user
         * @returns the brain key in its normalized form
         */
        string normalize_brain_key(string s) const;
  
        /** Registers a third party's account on the blockckain.
         *
         * This function is used to register an account for which you do not own the private keys.
         * When acting as a registrar, an end user will generate their own private keys and send
         * you the public keys.  The registrar will use this function to register the account
         * on behalf of the end user.
         *
         * @see create_account_with_brain_key()
         *
         * @param name the name of the account, must be unique on the blockchain.  Shorter names
         *             are more expensive to register; the rules are still in flux, but in general
         *             names of more than 8 characters with at least one digit will be cheap.
         * @param owner the owner key for the new account
         * @param active the active key for the new account
         * @param registrar_account the account which will pay the fee to register the user
         * @param referrer_account the account who is acting as a referrer, and may receive a
         *                         portion of the user's transaction fees.  This can be the
         *                         same as the registrar_account if there is no referrer.
         * @param referrer_percent the percentage (0 - 100) of the new user's transaction fees
         *                         not claimed by the blockchain that will be distributed to the
         *                         referrer; the rest will be sent to the registrar.  Will be
         *                         multiplied by GRAPHENE_1_PERCENT when constructing the transaction.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction registering the account
         */
        signed_transaction register_account(string name,
                                            public_key_type owner,
                                            public_key_type active,
                                            string  registrar_account,
                                            string  referrer_account,
                                            uint32_t referrer_percent,
                                            bool broadcast = false);
  
        /**
         *  Upgrades an account to prime status.
         *  This makes the account holder a 'lifetime member'.
         *
         *  @todo there is no option for annual membership
         *  @param name the name or id of the account to upgrade
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction upgrading the account
         */
        signed_transaction upgrade_account(string name, bool broadcast);
  
        /** Creates a new account and registers it on the blockchain.
         *
         * @todo why no referrer_percent here?
         *
         * @see suggest_brain_key()
         * @see register_account()
         *
         * @param brain_key the brain key used for generating the account's private keys
         * @param account_name the name of the account, must be unique on the blockchain.  Shorter names
         *                     are more expensive to register; the rules are still in flux, but in general
         *                     names of more than 8 characters with at least one digit will be cheap.
         * @param registrar_account the account which will pay the fee to register the user
         * @param referrer_account the account who is acting as a referrer, and may receive a
         *                         portion of the user's transaction fees.  This can be the
         *                         same as the registrar_account if there is no referrer.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction registering the account
         */
        signed_transaction create_account_with_brain_key(string brain_key,
                                                         string account_name,
                                                         string registrar_account,
                                                         string referrer_account,
                                                         bool broadcast = false);
  
        /** Transfer an amount from one account to another.
         * @param from the name or id of the account sending the funds
         * @param to the name or id of the account receiving the funds
         * @param amount the amount to send (in nominal units -- to send half of a ODEX, specify 0.5)
         * @param asset_symbol the symbol or id of the asset to send
         * @param memo a memo to attach to the transaction.  The memo will be encrypted in the 
         *             transaction and readable for the receiver.  There is no length limit
         *             other than the limit imposed by maximum transaction size, but transaction
         *             increase with transaction size
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction transferring funds
         */
        signed_transaction transfer(string from,
                                    string to,
                                    string amount,
                                    string asset_symbol,
                                    string memo,
                                    bool broadcast = false);
  
        /**
         *  This method works just like transfer, except it always broadcasts and
         *  returns the transaction ID along with the signed transaction.
         */
        pair<transaction_id_type,signed_transaction> transfer2(string from,
                                                               string to,
                                                               string amount,
                                                               string asset_symbol,
                                                               string memo ) {
           auto trx = transfer( from, to, amount, asset_symbol, memo, true );
           return std::make_pair(trx.id(),trx);
        }
  
  
        /**
         *  This method is used to convert a JSON transaction to its transactin ID.
         */
        transaction_id_type get_transaction_id( const signed_transaction& trx )const { return trx.id(); }
  
  
        /** These methods are used for stealth transfers */
        ///@{
        /**
         *  This method can be used to set the label for a public key
         *
         *  @note No two keys can have the same label.
         *
         *  @return true if the label was set, otherwise false
         */
        bool                        set_key_label( public_key_type, string label );
        string                      get_key_label( public_key_type )const;
  
        /**
         *  Generates a new blind account for the given brain key and assigns it the given label.
         */
        public_key_type             create_blind_account( string label, string brain_key  );
  
        /**
         * @return the total balance of all blinded commitments that can be claimed by the
         * given account key or label
         */
        vector<asset>                get_blind_balances( string key_or_label );
        /** @return all blind accounts */
        map<string,public_key_type> get_blind_accounts()const;
        /** @return all blind accounts for which this wallet has the private key */
        map<string,public_key_type> get_my_blind_accounts()const;
        /** @return the public key associated with the given label */
        public_key_type             get_public_key( string label )const;
        ///@}
  
        /**
         * @return all blind receipts to/form a particular account
         */
        vector<blind_receipt> blind_history( string key_or_account );
  
        /**
         *  Given a confirmation receipt, this method will parse it for a blinded balance and confirm
         *  that it exists in the blockchain.  If it exists then it will report the amount received and
         *  who sent it.
         *
         *  @param opt_from - if not empty and the sender is a unknown public key, then the unknown public key will be given the label opt_from
         *  @param confirmation_receipt - a base58 encoded stealth confirmation 
         */
        blind_receipt receive_blind_transfer( string confirmation_receipt, string opt_from, string opt_memo );
  
        /**
         *  Transfers a public balance from @from to one or more blinded balances using a
         *  stealth transfer.
         */
        blind_confirmation transfer_to_blind( string from_account_id_or_name, 
                                              string asset_symbol,
                                              /** map from key or label to amount */
                                              vector<pair<string, string>> to_amounts, 
                                              bool broadcast = false );
  
        /**
         * Transfers funds from a set of blinded balances to a public account balance.
         */
        blind_confirmation transfer_from_blind( 
                                              string from_blind_account_key_or_label,
                                              string to_account_id_or_name, 
                                              string amount,
                                              string asset_symbol,
                                              bool broadcast = false );
  
        /**
         *  Used to transfer from one set of blinded balances to another
         */
        blind_confirmation blind_transfer( string from_key_or_label,
                                           string to_key_or_label,
                                           string amount,
                                           string symbol,
                                           bool broadcast = false );
  
        /** Place a limit order attempting to sell one asset for another.
         *
         * Buying and selling are the same operation on Graphene; if you want to buy ODEX 
         * with USD, you should sell USD for ODEX.
         *
         * The blockchain will attempt to sell the \c symbol_to_sell for as
         * much \c symbol_to_receive as possible, as long as the price is at 
         * least \c min_to_receive / \c amount_to_sell.   
         *
         * In addition to the transaction fees, market fees will apply as specified 
         * by the issuer of both the selling asset and the receiving asset as
         * a percentage of the amount exchanged.
         *
         * If either the selling asset or the receiving asset is whitelist
         * restricted, the order will only be created if the seller is on
         * the whitelist of the restricted asset type.
         *
         * Market orders are matched in the order they are included
         * in the block chain.
         *
         * @todo Allow order expiration to be set here.  Document default/max expiration time
         *
         * @param seller_account the account providing the asset being sold, and which will 
         *                       receive the proceeds of the sale.
         * @param amount_to_sell the amount of the asset being sold to sell (in nominal units)
         * @param symbol_to_sell the name or id of the asset to sell
         * @param min_to_receive the minimum amount you are willing to receive in return for
         *                       selling the entire amount_to_sell
         * @param symbol_to_receive the name or id of the asset you wish to receive
         * @param timeout_sec if the order does not fill immediately, this is the length of 
         *                    time the order will remain on the order books before it is 
         *                    cancelled and the un-spent funds are returned to the seller's 
         *                    account
         * @param fill_or_kill if true, the order will only be included in the blockchain
         *                     if it is filled immediately; if false, an open order will be
         *                     left on the books to fill any amount that cannot be filled
         *                     immediately.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction selling the funds
         */
        signed_transaction sell_asset(string seller_account,
                                      string amount_to_sell,
                                      string   symbol_to_sell,
                                      string min_to_receive,
                                      string   symbol_to_receive,
                                      uint32_t timeout_sec = 0,
                                      bool     fill_or_kill = false,
                                      bool     broadcast = false);
                                      
        /** Place a limit order attempting to sell one asset for another.
         * 
         * This API call abstracts away some of the details of the sell_asset call to be more
         * user friendly. All orders placed with sell never timeout and will not be killed if they
         * cannot be filled immediately. If you wish for one of these parameters to be different, 
         * then sell_asset should be used instead.
         *
         * @param seller_account the account providing the asset being sold, and which will
         *                       receive the processed of the sale.
         * @param base The name or id of the asset to sell.
         * @param quote The name or id of the asset to recieve.
         * @param rate The rate in base:quote at which you want to sell.
         * @param amount The amount of base you want to sell.
         * @param broadcast true to broadcast the transaction on the network.
         * @returns The signed transaction selling the funds.                 
         */
        signed_transaction sell( string seller_account,
                                 string base,
                                 string quote,
                                 double rate,
                                 double amount,
                                 bool broadcast );
                                 
        /** Place a limit order attempting to buy one asset with another.
         *
         * This API call abstracts away some of the details of the sell_asset call to be more
         * user friendly. All orders placed with buy never timeout and will not be killed if they
         * cannot be filled immediately. If you wish for one of these parameters to be different,
         * then sell_asset should be used instead.
         *
         * @param buyer_account The account buying the asset for another asset.
         * @param base The name or id of the asset to buy.
         * @param quote The name or id of the assest being offered as payment.
         * @param rate The rate in base:quote at which you want to buy.
         * @param amount the amount of base you want to buy.
         * @param broadcast true to broadcast the transaction on the network.
         * @param The signed transaction selling the funds.
         */
        signed_transaction buy( string buyer_account,
                                string base,
                                string quote,
                                double rate,
                                double amount,
                                bool broadcast );
  
        /** Borrow an asset or update the debt/collateral ratio for the loan.
         *
         * This is the first step in shorting an asset.  Call \c sell_asset() to complete the short.
         *
         * @param borrower_name the name or id of the account associated with the transaction.
         * @param amount_to_borrow the amount of the asset being borrowed.  Make this value
         *                         negative to pay back debt.
         * @param asset_symbol the symbol or id of the asset being borrowed.
         * @param amount_of_collateral the amount of the backing asset to add to your collateral
         *        position.  Make this negative to claim back some of your collateral.
         *        The backing asset is defined in the \c bitasset_options for the asset being borrowed.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction borrowing the asset
         */
        signed_transaction borrow_asset(string borrower_name, string amount_to_borrow, string asset_symbol,
                                        string amount_of_collateral, bool broadcast = false);
  
        /** Cancel an existing order
         *
         * @param order_id the id of order to be cancelled
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction canceling the order
         */
        signed_transaction cancel_order(object_id_type order_id, bool broadcast = false);
  
        /** Creates a new user-issued or market-issued asset.
         *
         * Many options can be changed later using \c update_asset()
         *
         * Right now this function is difficult to use because you must provide raw JSON data
         * structures for the options objects, and those include prices and asset ids.
         *
         * @param issuer the name or id of the account who will pay the fee and become the 
         *               issuer of the new asset.  This can be updated later
         * @param symbol the ticker symbol of the new asset
         * @param precision the number of digits of precision to the right of the decimal point,
         *                  must be less than or equal to 12
         * @param common asset options required for all new assets.
         *               Note that core_exchange_rate technically needs to store the asset ID of 
         *               this new asset. Since this ID is not known at the time this operation is 
         *               created, create this price as though the new asset has instance ID 1, and
         *               the chain will overwrite it with the new asset's ID.
         * @param bitasset_opts options specific to BitAssets.  This may be null unless the
         *               \c market_issued flag is set in common.flags
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction creating a new asset
         */
        signed_transaction create_asset(string issuer,
                                        string symbol,
                                        uint8_t precision,
                                        asset_options common,
                                        fc::optional<bitasset_options> bitasset_opts,
                                        bool broadcast = false);
  
        /** Issue new shares of an asset.
         *
         * @param to_account the name or id of the account to receive the new shares
         * @param amount the amount to issue, in nominal units
         * @param symbol the ticker symbol of the asset to issue
         * @param memo a memo to include in the transaction, readable by the recipient
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction issuing the new shares
         */
        signed_transaction issue_asset(string to_account, string amount,
                                       string symbol,
                                       string memo,
                                       bool broadcast = false);
  
        /** Update the core options on an asset.
         * There are a number of options which all assets in the network use. These options are 
         * enumerated in the asset_object::asset_options struct. This command is used to update 
         * these options for an existing asset.
         *
         * @note This operation cannot be used to update BitAsset-specific options. For these options,
         * \c update_bitasset() instead.
         *
         * @param symbol the name or id of the asset to update
         * @param new_issuer if changing the asset's issuer, the name or id of the new issuer.
         *                   null if you wish to remain the issuer of the asset
         * @param new_options the new asset_options object, which will entirely replace the existing
         *                    options.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction updating the asset
         */
        signed_transaction update_asset(string symbol,
                                        optional<string> new_issuer,
                                        asset_options new_options,
                                        bool broadcast = false);
  
        /** Update the options specific to a BitAsset.
         *
         * BitAssets have some options which are not relevant to other asset types. This operation is used to update those
         * options an an existing BitAsset.
         *
         * @see update_asset()
         *
         * @param symbol the name or id of the asset to update, which must be a market-issued asset
         * @param new_options the new bitasset_options object, which will entirely replace the existing
         *                    options.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction updating the bitasset
         */
        signed_transaction update_bitasset(string symbol,
                                           bitasset_options new_options,
                                           bool broadcast = false);
  
        /** Update the set of feed-producing accounts for a BitAsset.
         *
         * BitAssets have price feeds selected by taking the median values of recommendations from a set of feed producers.
         * This command is used to specify which accounts may produce feeds for a given BitAsset.
         * @param symbol the name or id of the asset to update
         * @param new_feed_producers a list of account names or ids which are authorized to produce feeds for the asset.
         *                           this list will completely replace the existing list
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction updating the bitasset's feed producers
         */
        signed_transaction update_asset_feed_producers(string symbol,
                                                       flat_set<string> new_feed_producers,
                                                       bool broadcast = false);
        
        /** Publishes a price feed for the named asset.
         *
         * Price feed providers use this command to publish their price feeds for market-issued assets. A price feed is
         * used to tune the market for a particular market-issued asset. For each value in the feed, the median across all
         * committee_member feeds for that asset is calculated and the market for the asset is configured with the median of that
         * value.
         *
         * The feed object in this command contains three prices: a call price limit, a short price limit, and a settlement price.
         * The call limit price is structured as (collateral asset) / (debt asset) and the short limit price is structured
         * as (asset for sale) / (collateral asset). Note that the asset IDs are opposite to eachother, so if we're
         * publishing a feed for USD, the call limit price will be CORE/USD and the short limit price will be USD/CORE. The
         * settlement price may be flipped either direction, as long as it is a ratio between the market-issued asset and
         * its collateral.
         *
         * @param publishing_account the account publishing the price feed
         * @param symbol the name or id of the asset whose feed we're publishing
         * @param feed the price_feed object containing the three prices making up the feed
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction updating the price feed for the given asset
         */
        signed_transaction publish_asset_feed(string publishing_account,
                                              string symbol,
                                              price_feed feed,
                                              bool broadcast = false);
  
        /** Pay into the fee pool for the given asset.
         *
         * User-issued assets can optionally have a pool of the core asset which is 
         * automatically used to pay transaction fees for any transaction using that
         * asset (using the asset's core exchange rate).
         *
         * This command allows anyone to deposit the core asset into this fee pool.
         *
         * @param from the name or id of the account sending the core asset
         * @param symbol the name or id of the asset whose fee pool you wish to fund
         * @param amount the amount of the core asset to deposit
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction funding the fee pool
         */
        signed_transaction fund_asset_fee_pool(string from,
                                               string symbol,
                                               string amount,
                                               bool broadcast = false);
  
        /** Burns the given user-issued asset.
         *
         * This command burns the user-issued asset to reduce the amount in circulation.
         * @note you cannot burn market-issued assets.
         * @param from the account containing the asset you wish to burn
         * @param amount the amount to burn, in nominal units
         * @param symbol the name or id of the asset to burn
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction burning the asset
         */
        signed_transaction reserve_asset(string from,
                                      string amount,
                                      string symbol,
                                      bool broadcast = false);
  
        /** Forces a global settling of the given asset (black swan or prediction markets).
         *
         * In order to use this operation, asset_to_settle must have the global_settle flag set
         *
         * When this operation is executed all balances are converted into the backing asset at the
         * settle_price and all open margin positions are called at the settle price.  If this asset is
         * used as backing for other bitassets, those bitassets will be force settled at their current
         * feed price.
         *
         * @note this operation is used only by the asset issuer, \c settle_asset() may be used by 
         *       any user owning the asset
         *
         * @param symbol the name or id of the asset to force settlement on
         * @param settle_price the price at which to settle
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction settling the named asset
         */
        signed_transaction global_settle_asset(string symbol,
                                               price settle_price,
                                               bool broadcast = false);
  
        /** Schedules a market-issued asset for automatic settlement.
         *
         * Holders of market-issued assests may request a forced settlement for some amount of their asset. This means that
         * the specified sum will be locked by the chain and held for the settlement period, after which time the chain will
         * choose a margin posision holder and buy the settled asset using the margin's collateral. The price of this sale
         * will be based on the feed price for the market-issued asset being settled. The exact settlement price will be the
         * feed price at the time of settlement with an offset in favor of the margin position, where the offset is a
         * blockchain parameter set in the global_property_object.
         *
         * @param account_to_settle the name or id of the account owning the asset
         * @param amount_to_settle the amount of the named asset to schedule for settlement
         * @param symbol the name or id of the asset to settlement on
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction settling the named asset
         */
        signed_transaction settle_asset(string account_to_settle,
                                        string amount_to_settle,
                                        string symbol,
                                        bool broadcast = false);
  
        /** Whitelist and blacklist accounts, primarily for transacting in whitelisted assets.
         *
         * Accounts can freely specify opinions about other accounts, in the form of either whitelisting or blacklisting
         * them. This information is used in chain validation only to determine whether an account is authorized to transact
         * in an asset type which enforces a whitelist, but third parties can use this information for other uses as well,
         * as long as it does not conflict with the use of whitelisted assets.
         *
         * An asset which enforces a whitelist specifies a list of accounts to maintain its whitelist, and a list of
         * accounts to maintain its blacklist. In order for a given account A to hold and transact in a whitelisted asset S,
         * A must be whitelisted by at least one of S's whitelist_authorities and blacklisted by none of S's
         * blacklist_authorities. If A receives a balance of S, and is later removed from the whitelist(s) which allowed it
         * to hold S, or added to any blacklist S specifies as authoritative, A's balance of S will be frozen until A's
         * authorization is reinstated.
         *
         * @param authorizing_account the account who is doing the whitelisting
         * @param account_to_list the account being whitelisted
         * @param new_listing_status the new whitelisting status
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction changing the whitelisting status
         */
        signed_transaction whitelist_account(string authorizing_account,
                                             string account_to_list,
                                             account_whitelist_operation::account_listing new_listing_status,
                                             bool broadcast = false);
  
        /** Creates a committee_member object owned by the given account.
         *
         * An account can have at most one committee_member object.
         *
         * @param owner_account the name or id of the account which is creating the committee_member
         * @param url a URL to include in the committee_member record in the blockchain.  Clients may
         *            display this when showing a list of committee_members.  May be blank.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction registering a committee_member
         */
        signed_transaction create_committee_member(string owner_account,
                                           string url, 
                                           bool broadcast = false);
  
        /** Lists all witnesses registered in the blockchain.
         * This returns a list of all account names that own witnesses, and the associated witness id,
         * sorted by name.  This lists witnesses whether they are currently voted in or not.
         *
         * Use the \c lowerbound and limit parameters to page through the list.  To retrieve all witnesss,
         * start by setting \c lowerbound to the empty string \c "", and then each iteration, pass
         * the last witness name returned as the \c lowerbound for the next \c list_witnesss() call.
         *
         * @param lowerbound the name of the first witness to return.  If the named witness does not exist, 
         *                   the list will start at the witness that comes after \c lowerbound
         * @param limit the maximum number of witnesss to return (max: 1000)
         * @returns a list of witnesss mapping witness names to witness ids
         */
        map<string,witness_id_type>       list_witnesses(const string& lowerbound, uint32_t limit);
  
        /** Lists all committee_members registered in the blockchain.
         * This returns a list of all account names that own committee_members, and the associated committee_member id,
         * sorted by name.  This lists committee_members whether they are currently voted in or not.
         *
         * Use the \c lowerbound and limit parameters to page through the list.  To retrieve all committee_members,
         * start by setting \c lowerbound to the empty string \c "", and then each iteration, pass
         * the last committee_member name returned as the \c lowerbound for the next \c list_committee_members() call.
         *
         * @param lowerbound the name of the first committee_member to return.  If the named committee_member does not exist, 
         *                   the list will start at the committee_member that comes after \c lowerbound
         * @param limit the maximum number of committee_members to return (max: 1000)
         * @returns a list of committee_members mapping committee_member names to committee_member ids
         */
        map<string, committee_member_id_type>       list_committee_members(const string& lowerbound, uint32_t limit);
  
        /** Returns information about the given witness.
         * @param owner_account the name or id of the witness account owner, or the id of the witness
         * @returns the information about the witness stored in the block chain
         */
        witness_object get_witness(string owner_account);
  
        /** Returns information about the given committee_member.
         * @param owner_account the name or id of the committee_member account owner, or the id of the committee_member
         * @returns the information about the committee_member stored in the block chain
         */
        committee_member_object get_committee_member(string owner_account);
  
        /** Creates a witness object owned by the given account.
         *
         * An account can have at most one witness object.
         *
         * @param owner_account the name or id of the account which is creating the witness
         * @param url a URL to include in the witness record in the blockchain.  Clients may
         *            display this when showing a list of witnesses.  May be blank.
         * @param broadcast true to broadcast the transaction on the network
         * @returns the signed transaction registering a witness
         */
        signed_transaction create_witness(string owner_account,
                                          string url,
                                          bool broadcast = false);
  
        /**
         * Update a witness object owned by the given account.
         *
         * @param witness The name of the witness's owner account.  Also accepts the ID of the owner account or the ID of the witness.
         * @param url Same as for create_witness.  The empty string makes it remain the same.
         * @param block_signing_key The new block signing public key.  The empty string makes it remain the same.
         * @param broadcast true if you wish to broadcast the transaction.
         */
        signed_transaction update_witness(string witness_name,
                                          string url,
                                          string block_signing_key,
                                          bool broadcast = false);
  
  
        /**
         * Create a worker object.
         *
         * @param owner_account The account which owns the worker and will be paid
         * @param work_begin_date When the work begins
         * @param work_end_date When the work ends
         * @param daily_pay Amount of pay per day (NOT per maint interval)
         * @param name Any text
         * @param url Any text
         * @param worker_settings {"type" : "burn"|"refund"|"vesting", "pay_vesting_period_days" : x}
         * @param broadcast true if you wish to broadcast the transaction.
         */
        signed_transaction create_worker(
           string owner_account,
           time_point_sec work_begin_date,
           time_point_sec work_end_date,
           share_type daily_pay,
           string name,
           string url,
           variant worker_settings,
           bool broadcast = false
           );
  
        /**
         * Update your votes for a worker
         *
         * @param account The account which will pay the fee and update votes.
         * @param worker_vote_delta {"vote_for" : [...], "vote_against" : [...], "vote_abstain" : [...]}
         * @param broadcast true if you wish to broadcast the transaction.
         */
        signed_transaction update_worker_votes(
           string account,
           worker_vote_delta delta,
           bool broadcast = false
           );
  
        /**
         * Get information about a vesting balance object.
         *
         * @param account_name An account name, account ID, or vesting balance object ID.
         */
        vector< vesting_balance_object_with_info > get_vesting_balances( string account_name );
  
        /**
         * Withdraw a vesting balance.
         *
         * @param witness_name The account name of the witness, also accepts account ID or vesting balance ID type.
         * @param amount The amount to withdraw.
         * @param asset_symbol The symbol of the asset to withdraw.
         * @param broadcast true if you wish to broadcast the transaction
         */
        signed_transaction withdraw_vesting(
           string witness_name,
           string amount,
           string asset_symbol,
           bool broadcast = false);
  
        /** Vote for a given committee_member.
         *
         * An account can publish a list of all committee_memberes they approve of.  This 
         * command allows you to add or remove committee_memberes from this list.
         * Each account's vote is weighted according to the number of shares of the
         * core asset owned by that account at the time the votes are tallied.
         *
         * @note you cannot vote against a committee_member, you can only vote for the committee_member
         *       or not vote for the committee_member.
         *
         * @param voting_account the name or id of the account who is voting with their shares
         * @param committee_member the name or id of the committee_member' owner account
         * @param approve true if you wish to vote in favor of that committee_member, false to 
         *                remove your vote in favor of that committee_member
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed transaction changing your vote for the given committee_member
         */
        signed_transaction vote_for_committee_member(string voting_account,
                                             string committee_member,
                                             bool approve,
                                             bool broadcast = false);
  
        /** Vote for a given witness.
         *
         * An account can publish a list of all witnesses they approve of.  This 
         * command allows you to add or remove witnesses from this list.
         * Each account's vote is weighted according to the number of shares of the
         * core asset owned by that account at the time the votes are tallied.
         *
         * @note you cannot vote against a witness, you can only vote for the witness
         *       or not vote for the witness.
         *
         * @param voting_account the name or id of the account who is voting with their shares
         * @param witness the name or id of the witness' owner account
         * @param approve true if you wish to vote in favor of that witness, false to 
         *                remove your vote in favor of that witness
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed transaction changing your vote for the given witness
         */
        signed_transaction vote_for_witness(string voting_account,
                                            string witness,
                                            bool approve,
                                            bool broadcast = false);
  
        /** Set the voting proxy for an account.
         *
         * If a user does not wish to take an active part in voting, they can choose
         * to allow another account to vote their stake.
         *
         * Setting a vote proxy does not remove your previous votes from the blockchain,
         * they remain there but are ignored.  If you later null out your vote proxy,
         * your previous votes will take effect again.
         *
         * This setting can be changed at any time.
         *
         * @param account_to_modify the name or id of the account to update
         * @param voting_account the name or id of an account authorized to vote account_to_modify's shares,
         *                       or null to vote your own shares
         *
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed transaction changing your vote proxy settings
         */
        signed_transaction set_voting_proxy(string account_to_modify,
                                            optional<string> voting_account,
                                            bool broadcast = false);
        
        /** Set your vote for the number of witnesses and committee_members in the system.
         *
         * Each account can voice their opinion on how many committee_members and how many 
         * witnesses there should be in the active committee_member/active witness list.  These
         * are independent of each other.  You must vote your approval of at least as many
         * committee_members or witnesses as you claim there should be (you can't say that there should
         * be 20 committee_members but only vote for 10). 
         *
         * There are maximum values for each set in the blockchain parameters (currently 
         * defaulting to 1001).
         *
         * This setting can be changed at any time.  If your account has a voting proxy
         * set, your preferences will be ignored.
         *
         * @param account_to_modify the name or id of the account to update
         * @param number_of_committee_members the number 
         *
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed transaction changing your vote proxy settings
         */
        signed_transaction set_desired_witness_and_committee_member_count(string account_to_modify,
                                                                  uint16_t desired_number_of_witnesses,
                                                                  uint16_t desired_number_of_committee_members,
                                                                  bool broadcast = false);
  
        /** Signs a transaction.
         *
         * Given a fully-formed transaction that is only lacking signatures, this signs
         * the transaction with the necessary keys and optionally broadcasts the transaction
         * @param tx the unsigned transaction
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed version of the transaction
         */
        signed_transaction sign_transaction(signed_transaction tx, bool broadcast = false);
  
        /** Returns an uninitialized object representing a given blockchain operation.
         *
         * This returns a default-initialized object of the given type; it can be used 
         * during early development of the wallet when we don't yet have custom commands for
         * creating all of the operations the blockchain supports.  
         *
         * Any operation the blockchain supports can be created using the transaction builder's
         * \c add_operation_to_builder_transaction() , but to do that from the CLI you need to 
         * know what the JSON form of the operation looks like.  This will give you a template
         * you can fill in.  It's better than nothing.
         * 
         * @param operation_type the type of operation to return, must be one of the 
         *                       operations defined in `graphene/chain/operations.hpp`
         *                       (e.g., "global_parameters_update_operation")
         * @return a default-constructed operation of the given type
         */
        operation get_prototype_operation(string operation_type);
  
        /** Creates a transaction to propose a parameter change.
         *
         * Multiple parameters can be specified if an atomic change is
         * desired.
         *
         * @param proposing_account The account paying the fee to propose the tx
         * @param expiration_time Timestamp specifying when the proposal will either take effect or expire.
         * @param changed_values The values to change; all other chain parameters are filled in with default values
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed version of the transaction
         */
        signed_transaction propose_parameter_change(
           const string& proposing_account,
           fc::time_point_sec expiration_time,
           const variant_object& changed_values,
           bool broadcast = false);
  
        /** Propose a fee change.
         * 
         * @param proposing_account The account paying the fee to propose the tx
         * @param expiration_time Timestamp specifying when the proposal will either take effect or expire.
         * @param changed_values Map of operation type to new fee.  Operations may be specified by name or ID.
         *    The "scale" key changes the scale.  All other operations will maintain current values.
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed version of the transaction
         */
        signed_transaction propose_fee_change(
           const string& proposing_account,
           fc::time_point_sec expiration_time,
           const variant_object& changed_values,
           bool broadcast = false);
  
        /** Approve or disapprove a proposal.
         *
         * @param fee_paying_account The account paying the fee for the op.
         * @param proposal_id The proposal to modify.
         * @param delta Members contain approvals to create or remove.  In JSON you can leave empty members undefined.
         * @param broadcast true if you wish to broadcast the transaction
         * @return the signed version of the transaction
         */
        signed_transaction approve_proposal(
           const string& fee_paying_account,
           const string& proposal_id,
           const approval_delta& delta,
           bool broadcast /* = false */
           );
           
        order_book get_order_book( const string& base, const string& quote, unsigned limit = 50);
  
        void dbg_make_uia(string creator, string symbol);
        void dbg_make_mia(string creator, string symbol);
        void dbg_push_blocks( std::string src_filename, uint32_t count );
        void dbg_generate_blocks( std::string debug_wif_key, uint32_t count );
        void dbg_stream_json_objects( const std::string& filename );
        void dbg_update_object( fc::variant_object update );
  
        void flood_network(string prefix, uint32_t number_of_transactions);
  
        void network_add_nodes( const vector<string>& nodes );
        vector< variant > network_get_connected_peers();
  
        /**
         *  Used to transfer from one set of blinded balances to another
         */
        blind_confirmation blind_transfer_help( string from_key_or_label,
                                           string to_key_or_label,
                                           string amount,
                                           string symbol,
                                           bool broadcast = false,
                                           bool to_temp = false );
  
  
        std::map<string,std::function<string(fc::variant,const fc::variants&)>> get_result_formatters() const;
  
        fc::signal<void(bool)> lock_changed;
        std::shared_ptr<detail::wallet_api_impl> my;
        void encrypt_keys();
  };
  
  } }
  
  FC_REFLECT( graphene::wallet::key_label, (label)(key) )
  FC_REFLECT( graphene::wallet::blind_balance, (amount)(from)(to)(one_time_key)(blinding_factor)(commitment)(used) )
  FC_REFLECT( graphene::wallet::blind_confirmation::output, (label)(pub_key)(decrypted_memo)(confirmation)(auth)(confirmation_receipt) )
  FC_REFLECT( graphene::wallet::blind_confirmation, (trx)(outputs) )
  
  FC_REFLECT( graphene::wallet::plain_keys, (keys)(checksum) )
  
  FC_REFLECT( graphene::wallet::wallet_data,
              (chain_id)
              (my_accounts)
              (cipher_keys)
              (extra_keys)
              (pending_account_registrations)(pending_witness_registrations)
              (labeled_keys)
              (blind_receipts)
              (ws_server)
              (ws_user)
              (ws_password)
            )
  
  FC_REFLECT( graphene::wallet::brain_key_info,
              (brain_priv_key)
              (wif_priv_key)
              (pub_key)
            )
  
  FC_REFLECT( graphene::wallet::exported_account_keys, (account_name)(encrypted_private_keys)(public_keys) )
  
  FC_REFLECT( graphene::wallet::exported_keys, (password_checksum)(account_keys) )
  
  FC_REFLECT( graphene::wallet::blind_receipt,
              (date)(from_key)(from_label)(to_key)(to_label)(amount)(memo)(control_authority)(data)(used)(conf) )
  
  FC_REFLECT( graphene::wallet::approval_delta,
     (active_approvals_to_add)
     (active_approvals_to_remove)
     (owner_approvals_to_add)
     (owner_approvals_to_remove)
     (key_approvals_to_add)
     (key_approvals_to_remove)
  )
  
  FC_REFLECT( graphene::wallet::worker_vote_delta,
     (vote_for)
     (vote_against)
     (vote_abstain)
  )
  
  FC_REFLECT_DERIVED( graphene::wallet::signed_block_with_info, (graphene::chain::signed_block),
     (block_id)(signing_key)(transaction_ids) )
  
  FC_REFLECT_DERIVED( graphene::wallet::vesting_balance_object_with_info, (graphene::chain::vesting_balance_object),
     (allowed_withdraw)(allowed_withdraw_time) )
  
  FC_REFLECT( graphene::wallet::operation_detail, 
              (memo)(description)(op) )
  
  FC_API( graphene::wallet::wallet_api,
          (help)
          (gethelp)
          (info)
          (about)
          (begin_builder_transaction)
          (add_operation_to_builder_transaction)
          (replace_operation_in_builder_transaction)
          (set_fees_on_builder_transaction)
          (preview_builder_transaction)
          (sign_builder_transaction)
          (propose_builder_transaction)
          (propose_builder_transaction2)
          (remove_builder_transaction)
          (is_new)
          (is_locked)
          (lock)(unlock)(set_password)
          (dump_private_keys)
          (list_my_accounts)
          (list_accounts)
          (list_account_balances)
          (list_assets)
          (import_key)
          (import_accounts)
          (import_account_keys)
          (import_balance)
          (suggest_brain_key)
          (derive_owner_keys_from_brain_key)
          (register_account)
          (upgrade_account)
          (create_account_with_brain_key)
          (sell_asset)
          (sell)
          (buy)
          (borrow_asset)
          (cancel_order)
          (transfer)
          (transfer2)
          (get_transaction_id)
          (create_asset)
          (update_asset)
          (update_bitasset)
          (update_asset_feed_producers)
          (publish_asset_feed)
          (issue_asset)
          (get_asset)
          (get_bitasset_data)
          (fund_asset_fee_pool)
          (reserve_asset)
          (global_settle_asset)
          (settle_asset)
          (whitelist_account)
          (create_committee_member)
          (get_witness)
          (get_committee_member)
          (list_witnesses)
          (list_committee_members)
          (create_witness)
          (update_witness)
          (create_worker)
          (update_worker_votes)
          (get_vesting_balances)
          (withdraw_vesting)
          (vote_for_committee_member)
          (vote_for_witness)
          (set_voting_proxy)
          (set_desired_witness_and_committee_member_count)
          (get_account)
          (get_account_id)
          (get_block)
          (get_account_count)
          (get_account_history)
          (get_relative_account_history)
          (is_public_key_registered)
          (get_market_history)
          (get_global_properties)
          (get_dynamic_global_properties)
          (get_object)
          (get_private_key)
          (load_wallet_file)
          (normalize_brain_key)
          (get_limit_orders)
          (get_call_orders)
          (get_settle_orders)
          (save_wallet_file)
          (serialize_transaction)
          (sign_transaction)
          (get_prototype_operation)
          (propose_parameter_change)
          (propose_fee_change)
          (approve_proposal)
          (dbg_make_uia)
          (dbg_make_mia)
          (dbg_push_blocks)
          (dbg_generate_blocks)
          (dbg_stream_json_objects)
          (dbg_update_object)
          (flood_network)
          (network_add_nodes)
          (network_get_connected_peers)
          (set_key_label)
          (get_key_label)
          (get_public_key)
          (get_blind_accounts)
          (get_my_blind_accounts)
          (get_blind_balances)
          (create_blind_account)
          (transfer_to_blind)
          (transfer_from_blind)
          (blind_transfer)
          (blind_history)
          (receive_blind_transfer)
          (get_order_book)
        )
  