"""Backend implementations for rate limit storage."""

from fastapi_traffic.backends.base import Backend
from fastapi_traffic.backends.memory import MemoryBackend
from fastapi_traffic.backends.sqlite import SQLiteBackend

__all__ = [
    "Backend",
    "MemoryBackend",
    "SQLiteBackend",
]

# Optional Redis backend
try:
    from fastapi_traffic.backends.redis import RedisBackend

    __all__.append("RedisBackend")
except ImportError:
    pass