code: def make_event_filter(self):
          
          event_filter = EventFilter(
              self.event_name,
              self.event,
              self.filters,
              from_block=self.from_block,
              to_block=self.to_block
          )
          event_filter.set_poll_interval(0.5)
          return event_filter
docs: Create a new event filter.