code: def isMultiContract(self, contract):
          
          if contract.m_secType == "FUT" and contract.m_expiry == "":
              return True
  
          if contract.m_secType in ["OPT", "FOP"] and \
                  (contract.m_expiry == "" or contract.m_strike == "" or contract.m_right == ""):
              return True
  
          tickerId = self.tickerId(contract)
          if tickerId in self.contract_details and \
                  len(self.contract_details[tickerId]["contracts"]) > 1:
              return True
  
          return False
docs: tells if is this contract has sub-contract with expiries/strikes/sides