from typing import Dict


class AuthStrategy:
    AUTH_HEADER = "Authorization"

    def build_authorization_header(self, token: str) -> str:
        return "Bearer " + token

    async def authorize(self, headers: Dict[str, str]) -> Dict[str, str]:
        ...


class DefaultAuthStrategy(AuthStrategy):
    async def authorize(self, headers: Dict[str, str]) -> Dict[str, str]:
        return headers