public function create(array $params)
	{
		if (!isset($params['email'])) {
			throw new MissingArgumentException('email');
		}

		if (!isset($params['name'])) {
			throw new MissingArgumentException('name');
		}

		if (!isset($params['domain'])) {
			throw new MissingArgumentException('domain');
		}

		return $this->post('app/create', $params);
	}