function delete($node_id = null, $trans_id = null) { if (!$node_id) { $response = HelperFunctions::create_custom_error_message('node_id'); } elseif (!$trans_id) { $response = HelperFunctions::create_custom_error_message('trans_id'); } else { $path = $this->create_trans_path($node_id, $trans_id); $response = $this->client->delete($path); } return $response; }