code: def push_subscription_update(self, follow_events=None, 
                                favourite_events=None, reblog_events=None, 
                                mention_events=None):
          
          params = {}
          
          if follow_events != None:
              params['data[alerts][follow]'] = follow_events
          
          if favourite_events != None:
              params['data[alerts][favourite]'] = favourite_events
              
          if reblog_events != None:
              params['data[alerts][reblog]'] = reblog_events
              
          if mention_events != None:
              params['data[alerts][mention]'] = mention_events
              
          return self.__api_request('PUT', '/api/v1/push/subscription', params)
docs: Modifies what kind of events the app wishes to subscribe to.
          
          Returns the updated `push subscription dict`_.