import json
from typing import Any, Dict, List, Union


class Record:
    def __init__(
        self, id: int, data: str, label: Union[List[Any], Dict[Any, Any]], user: str, metadata: Dict[Any, Any]
    ):
        self.id = id
        self.data = data
        self.label = label
        self.user = user
        self.metadata = metadata

    def __str__(self):
        return json.dumps(
            {"id": self.id, "data": self.data, "label": self.label, "user": self.user, "metadata": self.metadata}
        )