How to use the gillespy2.core.events.EventTrigger function in gillespy2

List of GillesPy2 species.
        parameter : list
            List of GillesPy2 parameters.
        '''
        name = args['name']
        if not args['delay'] == "":
            delay = args['delay']
        else:
            delay = None
        priority = args['priority']
        trigger_expression = args['triggerExpression']
        initial_value = args['initialValue']
        persistent = args['persistent']
        use_values_from_trigger_time = args['useValuesFromTriggerTime']

        trigger = EventTrigger(expression=trigger_expression, initial_value=initial_value, persistent=persistent)

        assignments = list(map(lambda a: self.build_event_assignment(a, self.species, self.parameters), args['eventAssignments']))

        return Event(name=name, delay=delay, assignments=assignments, priority=priority, trigger=trigger, use_values_from_trigger_time=use_values_from_trigger_time)