def METHOD_NAME(
    list_of_followers_for_entity_model,  # for which model should this list be for?
    follower_model,
    look_up_field_name,
    self,
):
    entity_model = list_of_followers_for_entity_model.objects.filter(
        url_slug=self.kwargs["url_slug"]
    )
    if not entity_model.exists():
        return None
    look_up_field_input = {
        look_up_field_name: entity_model[0]
    }  # this syntax is used for field_name=value in the .filter lookup below
    followers = follower_model.objects.filter(**look_up_field_input)
    return followers