public function get($key, &$token = null)
{
$value = $this->transaction->get($key, $token);
// only store if we managed to retrieve a value (valid token) and it's
// not already in cache (or we may mess up tokens)
if ($value !== false && $this->local->get($key, $localToken) === false && $localToken === null) {
$this->local->set($key, $value);
}
return $value;
}