code: public function deleteFlow($process_id, $flow_id)
      {
          list($response) = $this->deleteFlowWithHttpInfo($process_id, $flow_id);
          return $response;
      }
docs: Operation deleteFlow
  
  
  
  @param string $process_id Process ID (required)
  @param string $flow_id ID of the flow to delete (required)
  @return \ProcessMaker\PMIO\Model\ResultSuccess
  @throws \ProcessMaker\PMIO\ApiException on non-2xx response