original_string: private function _getClient(): ClientInterface
      {
          if (! $this->client instanceof ClientInterface) $this->client = new Client($this->clientConfig);
          return $this->client;
      }
code: private function _getClient(): ClientInterface
      {
          if (! $this->client instanceof ClientInterface) $this->client = new Client($this->clientConfig);
          return $this->client;
      }
code_tokens: private function _getClient ( ) : ClientInterface { if ( ! $ this -> client instanceof ClientInterface ) $ this -> client = new Client ( $ this -> clientConfig ) ; return $ this -> client ; }
docstring: get a client implements \GuzzleHttp\ClientInterface
  @return ClientInterface
docstring_tokens: get a client implements \ GuzzleHttp \ ClientInterface