code: def init_instance_fixtures(self):
      super(CalendarAliasTestCase, self).init_instance_fixtures()
      self.dispatcher = TradingCalendarDispatcher(
          # Make copies here so that tests that mutate the dispatcher dicts
          # are isolated from one another.
          **{k: v.copy() for k, v in self.dispatcher_kwargs.items()}
      )
  
file_path: catalyst/tests/calendars/test_calendar_dispatcher.py
imports: from catalyst.errors import CalendarNameCollision, CyclicCalendarAlias, InvalidCalendarName
  from catalyst.testing import CatalystTestCase
  from catalyst.utils.calendars.calendar_utils import TradingCalendarDispatcher
  from catalyst.utils.calendars.exchange_calendar_ice import ICEExchangeCalendar
label_desc: Use image node_id 2 for calling the CalendarAliasTestCase obj's underlying member method code with example usage: obj.init_instance_fixtures() without return types