from datetime import datetime

from abc import ABC, abstractmethod


class BaseClient(ABC):

    @abstractmethod
    def get_document(self, collection_name: str, record_id: str, created_at: datetime) -> dict or None:
        """
        Get data from cache.

        Args:
            collection_name: Collection name.
            record_id: Record ID.
            created_at: Record created_at timestamp.

        Returns:
             Cached data or None.

        """

    @abstractmethod
    def save_document(self, collection_name: str, record_id: str, created_at: datetime, data: dict):
        """Save data to cache.

        Args:
            collection_name: Collection name.
            record_id: Record ID.
            created_at: Records created_at datetime.
            data: Data with new image URLs.

        """