reference example

    public function testMessageBirdOptions()
    {
        $messageBirdOptions = (new MessageBirdOptions())
            ->type('test_type')
            ->scheduledDatetime('test_scheduled_datetime')
            ->createdDatetime('test_created_datetime')
            ->dataCoding('test_data_coding')
            ->gateway(999)
            ->groupIds(['test_group_ids'])
            ->mClass(888)
            ->reference('test_reference')
            ->reportUrl('test_report_url')
            ->shortenUrls(true)
            ->typeDetails('test_type_details')
            ->validity(777);

        self::assertSame([
            'type' => 'test_type',
            'scheduledDatetime' => 'test_scheduled_datetime',
            'createdDatetime' => 'test_created_datetime',
            'dataCoding' => 'test_data_coding',
            'gateway' => 999,