original_string: public function isFile($path)
      {
          $node = $this->at($path);
          return null !== $node && 'file' === $node->type;
      }
code: public function isFile($path)
      {
          $node = $this->at($path);
          return null !== $node && 'file' === $node->type;
      }
code_tokens: public function isFile ( $ path ) { $ node = $ this -> at ( $ path ) ; return null !== $ node && 'file' === $ node -> type ; }
docstring: Equivalent to PHP `is_file` function.
  
  @param  string  $path
  @return boolean
docstring_tokens: Equivalent to PHP is_file function .