stacklevel=4,
            )
        current_json_schema_extra = json_schema_extra or extra
        kwargs["deprecated"] = deprecated

        if serialization_alias in (_Unset, None) and isinstance(alias, str):
            serialization_alias = alias
        if validation_alias in (_Unset, None):
            validation_alias = alias
        kwargs.update(
            {
                "annotation": annotation,

        va = self.field_info.validation_alias
        if isinstance(va, str) and va:
            return va
        return None

    @property
    def serialization_alias(self) -> Union[str, None]:
        sa = self.field_info.serialization_alias
        return sa or None

    @property
    def required(self) -> bool:
        return self.field_info.is_required()

    @property