original_string: public function assets(Response $response, $asset)
      {
          $filesystem = new Filesystem(new Adapter(FS2ADMIN));
          $expires = 8640000;
  
          try {
              // generate cache data
              $timestamp_string = gmdate('D, d M Y H:i:s ', $filesystem->getTimestamp($asset)) . 'GMT';
              $etag = md5($filesystem->read($asset));
              $mime_type = $filesystem->getMimetype($asset);
              if (0 !== strpos($mime_type, 'image')) {
                  $mime_type = 'text/css';
              }
  
              $if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : false;
              $if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? $_SERVER['HTTP_IF_NONE_MATCH'] : false;
  
              if ((($if_none_match && $if_none_match == "\"{$etag}\"") || (!$if_none_match)) &&
                  ($if_modified_since && $if_modified_since == $timestamp_string)
              ) {
                  return $response->withStatus('304');
  
              } else {
                  $response = $response
                      ->withHeader('Last-Modified', $timestamp_string)
                      ->withHeader('ETag', "\"{$etag}\"");
              }
  
              // send out content type, expire time and the file
              $response->getBody()->write($filesystem->read($asset));
              return $response
                  ->withHeader('Expires', gmdate('D, d M Y H:i:s ', time() + $expires) . 'GMT')
                  ->withHeader('Content-Type', $mime_type)
                  ->withHeader('Pragma', 'cache')
                  ->withHeader('Cache-Control', 'cache');
  
          } catch (FileNotFoundException $e) {
              throw $e;
          }
      }
code: public function assets(Response $response, $asset)
      {
          $filesystem = new Filesystem(new Adapter(FS2ADMIN));
          $expires = 8640000;
  
          try {
              // generate cache data
              $timestamp_string = gmdate('D, d M Y H:i:s ', $filesystem->getTimestamp($asset)) . 'GMT';
              $etag = md5($filesystem->read($asset));
              $mime_type = $filesystem->getMimetype($asset);
              if (0 !== strpos($mime_type, 'image')) {
                  $mime_type = 'text/css';
              }
  
              $if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : false;
              $if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? $_SERVER['HTTP_IF_NONE_MATCH'] : false;
  
              if ((($if_none_match && $if_none_match == "\"{$etag}\"") || (!$if_none_match)) &&
                  ($if_modified_since && $if_modified_since == $timestamp_string)
              ) {
                  return $response->withStatus('304');
  
              } else {
                  $response = $response
                      ->withHeader('Last-Modified', $timestamp_string)
                      ->withHeader('ETag', "\"{$etag}\"");
              }
  
              // send out content type, expire time and the file
              $response->getBody()->write($filesystem->read($asset));
              return $response
                  ->withHeader('Expires', gmdate('D, d M Y H:i:s ', time() + $expires) . 'GMT')
                  ->withHeader('Content-Type', $mime_type)
                  ->withHeader('Pragma', 'cache')
                  ->withHeader('Cache-Control', 'cache');
  
          } catch (FileNotFoundException $e) {
              throw $e;
          }
      }
code_tokens: public function assets ( Response $ response , $ asset ) { $ filesystem = new Filesystem ( new Adapter ( FS2ADMIN ) ) ; $ expires = 8640000 ; try { // generate cache data $ timestamp_string = gmdate ( 'D, d M Y H:i:s ' , $ filesystem -> getTimestamp ( $ asset ) ) . 'GMT' ; $ etag = md5 ( $ filesystem -> read ( $ asset ) ) ; $ mime_type = $ filesystem -> getMimetype ( $ asset ) ; if ( 0 !== strpos ( $ mime_type , 'image' ) ) { $ mime_type = 'text/css' ; } $ if_modified_since = isset ( $ _SERVER [ 'HTTP_IF_MODIFIED_SINCE' ] ) ? $ _SERVER [ 'HTTP_IF_MODIFIED_SINCE' ] : false ; $ if_none_match = isset ( $ _SERVER [ 'HTTP_IF_NONE_MATCH' ] ) ? $ _SERVER [ 'HTTP_IF_NONE_MATCH' ] : false ; if ( ( ( $ if_none_match && $ if_none_match == "\"{$etag}\"" ) || ( ! $ if_none_match ) ) && ( $ if_modified_since && $ if_modified_since == $ timestamp_string ) ) { return $ response -> withStatus ( '304' ) ; } else { $ response = $ response -> withHeader ( 'Last-Modified' , $ timestamp_string ) -> withHeader ( 'ETag' , "\"{$etag}\"" ) ; } // send out content type, expire time and the file $ response -> getBody ( ) -> write ( $ filesystem -> read ( $ asset ) ) ; return $ response -> withHeader ( 'Expires' , gmdate ( 'D, d M Y H:i:s ' , time ( ) + $ expires ) . 'GMT' ) -> withHeader ( 'Content-Type' , $ mime_type ) -> withHeader ( 'Pragma' , 'cache' ) -> withHeader ( 'Cache-Control' , 'cache' ) ; } catch ( FileNotFoundException $ e ) { throw $ e ; } }
docstring: Return admin assets
  @param Response $response
  @param $asset
  @return Response|static
  @throws FileNotFoundException
docstring_tokens: Return admin assets