Gets all batch import jobs or a specific job of the specified ID. This is a paginated API. If you provide a null <code>maxResults</code>, this action retrieves a maximum of 50 records per page. If you provide a <code>maxResults</code>, the value must be between 1 and 50. To get the next page results, provide the pagination token from the <code>GetBatchImportJobsResponse</code> as part of your request. A null pagination token fetches the records from the beginning.