code: func (p *PassthruChaincode) iq(stub shim.ChaincodeStubInterface, function string, args []string) pb.Response {
  	if function == "" {
  		return shim.Error("Chaincode ID not provided")
  	}
  	chaincodeID := function
  
  	return stub.InvokeChaincode(chaincodeID, toChaincodeArgs(args...), "")
  }
docs: //helper