private function getDatabaseAdminClient()
    {
        //@codeCoverageIgnoreStart
        if ($this->databaseAdminClient) {
            return $this->databaseAdminClient;
        }
        //@codeCoverageIgnoreEnd

        $this->databaseAdminClient = new DatabaseAdminClient($this->grpcConfig);

        return $this->databaseAdminClient;
    }