docs: def get_previous_question(self, assessment_section_id, item_id):
          """Gets the previous question in this assesment section.
  
          arg:    assessment_section_id (osid.id.Id): ``Id`` of the
                  ``AssessmentSection``
          arg:    item_id (osid.id.Id): ``Id`` of the ``Item``
          return: (osid.assessment.Question) - the previous question
          raise:  IllegalState - ``has_previous_question()`` is ``false``
          raise:  NotFound - ``assessment_section_id`` or ``item_id`` is
                  not found, or ``item_id`` not part of
                  ``assessment_section_id``
          raise:  NullArgument - ``assessment_section_id`` or ``item_id``
                  is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  PermissionDenied - authorization failure occurred
          *compliance: mandatory -- This method must be implemented.*
  
          """
          return self.get_assessment_section(assessment_section_id).get_next_question(question_id=item_id, reverse=True)