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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 after_deactivate_transition_event(self):
 """Method triggered after a 'deactivate' transition for the current AnalysisService is performed. Removes this service from the Analysis Profiles or Analysis Request Templates where is assigned. This function is called automatically by bika.lims.workflow.AfterTransitionEventHandler """

        # Remove the service from profiles to which is assigned
        profiles = self.getBackReferences('AnalysisProfileAnalysisService')
        for profile in profiles:
            profile.remove_service(self)

        # Remove the service from templates to which is assigned
        bsc = api.get_tool('bika_setup_catalog')
        templates = bsc(portal_type='ARTemplate')
        for template in templates:
            template = api.get_object(template)
            template.remove_service(self)