original_string: private function httpClient()
      {
          if (!self::$httpClient) {
              self::$httpClient = HttpClient\CurlClient::instance();
          }
          return self::$httpClient;
      }
code: private function httpClient()
      {
          if (!self::$httpClient) {
              self::$httpClient = HttpClient\CurlClient::instance();
          }
          return self::$httpClient;
      }
code_tokens: private function httpClient ( ) { if ( ! self :: $ httpClient ) { self :: $ httpClient = HttpClient \ CurlClient :: instance ( ) ; } return self :: $ httpClient ; }
docstring: If needed create, and return a http client
  
  @return HttpClient\CurlClient
docstring_tokens: If needed create and return a http client