How to use the intake.models.County.objects.filter function in intake

def get_counties(self):
        return intake.models.County.objects.filter(
            organizations__submissions=self).distinct()

def get_live_counties_and_orgs():
    live_orgs = Organization.objects.filter(
        is_live=True, is_receiving_agency=True)
    live_counties = County.objects.filter(
        organizations__in=live_orgs).distinct()
    return live_counties, live_orgs

def get_counties(self):
        return County.objects.filter(
            organizations__submissions=self).distinct()

def get_counties(self):
        session_data = self.get_session_data()
        county_slugs = session_data.get('counties', [])
        return models.County.objects.filter(slug__in=county_slugs).all()

def get_counties_from_county_names_string(county_names_string):
    """converts an oxford comma string of county names in to
        county model instances
    """
    return models.County.objects.filter(
        name__in=oxford_comma_text_to_list(county_names_string))

def get_context_data(self, *args, **kwargs):
        context = super().get_context_data(*args, **kwargs)
        county_slugs = self.session_data.get('counties', [])
        counties = models.County.objects.filter(slug__in=county_slugs).all()
        context.update(
            counties=counties,
            county_list=[county.name + " County" for county in counties])
        return context