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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)