"""Redis cache repository skeleton."""

from typing import Any


class PriceCache:
    async def get(self, key: str) -> Any | None:
        _ = key
        raise NotImplementedError("Redis repository implementation is added in task 004.")

    async def set(self, key: str, value: Any, ttl: int) -> None:
        _ = (key, value, ttl)
        raise NotImplementedError("Redis repository implementation is added in task 004.")

    async def invalidate(self, key: str) -> None:
        _ = key
        raise NotImplementedError("Redis repository implementation is added in task 004.")