original_string: public function fs()
      {
          if (null === $this->fs)
              $this->fs = new Filesystem($this->getFilesystemPath(), $this->adapter);
          return $this->fs;
      }
code: public function fs()
      {
          if (null === $this->fs)
              $this->fs = new Filesystem($this->getFilesystemPath(), $this->adapter);
          return $this->fs;
      }
code_tokens: public function fs ( ) { if ( null === $ this -> fs ) $ this -> fs = new Filesystem ( $ this -> getFilesystemPath ( ) , $ this -> adapter ) ; return $ this -> fs ; }
docstring: Gets the filesystem coresponding to the file.
  
  @return Tarsana\Filesystem
docstring_tokens: Gets the filesystem coresponding to the file .