def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        self.email_field = get_user_email_field_name(User)
        self.fields[self.email_field] = serializers.EmailField() 

def test_should_email_convert_string():
    assert_conversion(serializers.EmailField, graphene.String) 

def __init__(self, allow_extra):
        class Model(serializers.Serializer):
            id = serializers.IntegerField()
            client_name = serializers.CharField(max_length=255, trim_whitespace=False)
            sort_index = serializers.FloatField()
            # client_email = serializers.EmailField(required=False, allow_null=True)
            client_phone = serializers.CharField(max_length=255, trim_whitespace=False, required=False, allow_null=True)

            class Location(serializers.Serializer):
                latitude = serializers.FloatField(required=False, allow_null=True)
                longitude = serializers.FloatField(required=False, allow_null=True)
            location = Location(required=False, allow_null=True)

            contractor = serializers.IntegerField(required=False, allow_null=True, min_value=0)
            upstream_http_referrer = serializers.CharField(
                max_length=1023, trim_whitespace=False, required=False, allow_null=True
            )
            grecaptcha_response = serializers.CharField(min_length=20, max_length=1000, trim_whitespace=False)
            last_updated = serializers.DateTimeField(required=False, allow_null=True)

            class Skill(serializers.Serializer):
                subject = serializers.CharField()
                subject_id = serializers.IntegerField()
                category = serializers.CharField()
                qual_level = serializers.CharField()
                qual_level_id = serializers.IntegerField()
                qual_level_ranking = serializers.FloatField(default=0)
            skills = serializers.ListField(child=Skill())

        self.allow_extra = allow_extra  # unused
        self.serializer = Model 

def make_string_validator(cls, settings: ParamSettings):
        if settings.regex:
            return serializers.RegexField(
                settings.regex,
                default=settings.default,
                max_length=settings.max_length,
                min_length=settings.min_length,
            )

        if settings.format is None:
            return serializers.CharField(
                default=settings.default,
                max_length=settings.max_length,
                min_length=settings.min_length,
                trim_whitespace=settings.trim_whitespace,
            )

        if settings.format == "email":
            return serializers.EmailField(
                default=settings.default,
                max_length=settings.max_length,
                min_length=settings.min_length,
            )

        if settings.format == "slug":
            return serializers.SlugField(
                default=settings.default,
                max_length=settings.max_length,
                min_length=settings.min_length,
            )

        if settings.format == "url":
            return serializers.URLField(
                default=settings.default,
                max_length=settings.max_length,
                min_length=settings.min_length,
            )

        if settings.format == "uuid":
            return serializers.UUIDField(default=settings.default)

        if settings.format == "file_path":
            return serializers.FilePathField(
                default=settings.default,
                path=settings.path,
                match=settings.match,
                recursive=settings.recursive,
                allow_files=settings.allow_files,
                allow_folders=settings.allow_folders,
            )

        if settings.format == "ipv6":
            return serializers.IPAddressField(default=settings.default, protocol="IPv6")

        if settings.format == "ipv4":
            return serializers.IPAddressField(default=settings.default, protocol="IPv4")

        if settings.format == "ip":
            return serializers.IPAddressField(default=settings.default, protocol="both")