original_string: public function addFile($file, $writeable = false): ConfigCollection {
          $config = FileConfig::load($file, $writeable);
          if ($config) {
              $this->addConfig($config);
          }
          return $this;
      }
code: public function addFile($file, $writeable = false): ConfigCollection {
          $config = FileConfig::load($file, $writeable);
          if ($config) {
              $this->addConfig($config);
          }
          return $this;
      }
code_tokens: public function addFile ( $ file , $ writeable = false ) : ConfigCollection { $ config = FileConfig :: load ( $ file , $ writeable ) ; if ( $ config ) { $ this -> addConfig ( $ config ) ; } return $ this ; }
docstring: Add a physical config file
  
  @param string $file
  @param bool $writeable
  @return ConfigCollection
docstring_tokens: Add a physical config file