I need to use the Canvas API to enroll multiple users (up to 400 per batch) into an existing course section.

I see the API will let me POST one user enrollment per API call using the "/v1/sections/{section_id}/enrollments" function.

Is there a different function that would let me enroll multiple users with a single API call?  Maybe some SIS import function?  I'd rather not take the slow approach of iterating over the list of users and enrolling them one at a time.