@utilities.arguments_not_none<EOL><INDENT>def clear_response(self, assessment_section_id, item_id):<DEDENT>
if (not self.has_assessment_section_begun(assessment_section_id) or<EOL>self.is_assessment_section_over(assessment_section_id)):<EOL><INDENT>raise errors.IllegalState()<EOL><DEDENT>self.get_assessment_section(assessment_section_id).submit_response(item_id, None)<EOL>
Clears the response to an item The item appears as unanswered.

        If no response exists, the method simply returns.

        arg:    assessment_section_id (osid.id.Id): ``Id`` of the
                ``AssessmentSection``
        arg:    item_id (osid.id.Id): ``Id`` of the ``Item``
        raise:  IllegalState - ``has_assessment_section_begun() is false
                or is_assessment_section_over() is true``
        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
        *compliance: mandatory -- This method must be implemented.*