code: public function isFresh($name, $time) : bool
      {
          if (!$this->exists($name)) {
              throw new LoaderError(sprintf(
                  'Unable to find template "%s" from template map',
                  $name
              ));
          }
  
          if (!file_exists($this->map[$name])) {
              throw new LoaderError(sprintf(
                  'Unable to open file "%s" from template map',
                  $this->map[$name]
              ));
          }
  
          return filemtime($this->map[$name]) <= $time;
      }
docs: {@inheritDoc}