code: def build(self, identity, modules, strategy=constants.DEFAULT_CONFIG):
          '''
          Wrapper of zipline run() method. Use the configuration set so far
          to build up the trading environment
          '''
          # TODO Catch a problem here
          self.engine = TradingEngine(identity, modules, strategy)
          self.initial_cash = strategy['manager'].get('cash', Nonef build(self, identity, modules, strategy=constants.DEFAULT_CONFIG):
          '''
          Wrapper of zipline run() method. Use the configuration set so far
          to build up the trading environment
          '''
          # TODO Catch a problem here
          self.engine = TradingEngine(identity, modules, strategy)
          self.initial_cash = strategy['manager'].get('cash', None)
docs: Wrapper of zipline run() method. Use the configuration set so far
          to build up the trading environment