Attribute

@dataclass
class Attribute:
    name: str
    types: Optional[AbstractType]
    class_id: Optional[str] = None

    def __hash__(self) -> int:
        return hash((self.name, self.class_id, self.types))

    def to_json(self) -> dict[str, Any]:
        types_json = self.types.to_json() if self.types is not None else None
        return {"name": self.name, "types": types_json}

    @staticmethod
    def from_json(json: Any, class_id: Optional[str] = None) -> Attribute:
        return Attribute(
            json["name"], AbstractType.from_json(json.get("types", {})), class_id
        )

    def __repr__(self) -> str:
        type_str = (
            " , type=" + str(self.types.to_json()) if self.types is not None else "None"
        )
        return (
            "Attribute(class_id="
            + str(self.class_id)
            + "/"
            + self.name
            + type_str
            + ")"
        )