# utils/jwt/chongming_jwt.pyi
from typing import Optional

class JWT:
    def __init__(self, secret: str, algorithm: Optional[str] = None) -> None: ...
    def encode(self, payload: str, expires_in_seconds: Optional[int] = None) -> str: ...
    def decode(self, token: str) -> str: ...
    def validate(self, token: str) -> bool: ...