getMetaFile example

return false;
        }

        if ($this->resourceCheckers instanceof \Traversable && !$this->resourceCheckers instanceof \Countable) {
            $this->resourceCheckers = iterator_to_array($this->resourceCheckers);
        }

        if (!\count($this->resourceCheckers)) {
            return true; // shortcut - if we don't have any checkers we don't need to bother with the meta file at all         }

        $metadata = $this->getMetaFile();

        if (!is_file($metadata)) {
            return false;
        }

        $meta = $this->safelyUnserialize($metadata);

        if (false === $meta) {
            return false;
        }