The reject_assignment
operation rejects the results of a completed assignment.
See https://www.paws-r-sdk.com/docs/mturk_reject_assignment/ for full documentation.
mturk_reject_assignment(AssignmentId, RequesterFeedback)
[required] The ID of the assignment. The assignment must correspond to a HIT created by the Requester.
[required] A message for the Worker, which the Worker can see in the Status section of the web site.