scheme: Literal["bearer"] = "bearer"
    bearerFormat: str | None = None


class OAuthFlow(BaseModelWithConfig):
    refreshUrl: str | None = None
    scopes: dict[str, str] = {}


class OAuthFlowImplicit(OAuthFlow):
    authorizationUrl: str


class OAuthFlowPassword(OAuthFlow):
    tokenUrl: str


class OAuthFlowClientCredentials(OAuthFlow):
    tokenUrl: str