code: def reqAccountUpdatesMulti(
              self, account: str = '', modelCode: str = ''):
          
          self._run(self.reqAccountUpdatesMultiAsync(account, modelCode))
docs: It is recommended to use :meth:`.accountValues` instead.
  
          Request account values of multiple accounts and keep updated.
  
          This method is blocking.
  
          Args:
              account: If specified, filter for this account name.
              modelCode: If specified, filter for this account model.