public function initializeConfig(Config $phystrixConfig)
{
$commandKey = $this->getCommandKey();
$config = new Config($phystrixConfig->get('default')->toArray(), true);
if ($phystrixConfig->__isset($commandKey)) {
$commandConfig = $phystrixConfig->get($commandKey);
$config->merge($commandConfig);
}
$this->config = $config;
}