public function beforePrepare(Event $event)
	{
		$command = $event['command'];
		$operation = $command->getOperation();

		if ($command->offsetGet('collection') === 'user' || $command->getClient()->getCollectionName() === 'user')
		{
			if (strstr($operation->getURI(), 'user') !== false) return;

			$operation->setURI('/user/{appKey}/{_id}');
		}
		elseif ($command->offsetGet('collection') === 'files' || $command->getClient()->getCollectionName() === 'files')
		{
			if (strstr($operation->getURI(), 'files') !== false) return;
			$operation->setURI('/blob/{appKey}/{_id}');
			$command->getRequestHeaders()->add('X-Kinvey-API-Version', 3);
		}
		elseif ($command->offsetGet('collection') === 'group' || $command->getClient()->getCollectionName() === 'group')
		{
			if (strstr($operation->getURI(), 'group') !== false) return;
			$operation->setURI('/group/{appKey}/{_id}');
		}
	}