def METHOD_NAME(self):
    field_name, field_value = 'test_choices', 'qwerty'
    self.assertEqual({}, self.sm1.custom_fields_as_dict)
    self.sm1.update_custom_field(name=field_name, value=field_value)
    self.assertEqual(
        {field_name: field_value}, self.sm1.custom_fields_as_dict
    )