Request class for MandateImportService.submit(java.lang.String).

Submits the mandate import, which allows it to be processed by a member of the GoCardless team. Once the import has been submitted, it can no longer have entries added to it.

In our sandbox environment, to aid development, we automatically process mandate imports approximately 10 seconds after they are submitted. This will allow you to test both the “submitted” response and wait for the webhook to confirm the processing has begun.