scopes = {}
        flows = OAuthFlowsModel(
            password=cast(
                Any,
                {
                    "tokenUrl": tokenUrl,
                    "refreshUrl": refreshUrl,
                    "scopes": scopes,
                },
            )
        )
        super().__init__(
            flows=flows,
            scheme_name=scheme_name,

    scheme: str


class HTTPBearer(HTTPBase):
    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

By declaring types for your variables, editors and tools can give you better support.

This is just a **quick tutorial / refresher** about Python type hints. It covers only the minimum necessary to use them with **FastAPI**... which is actually very little.

**FastAPI** is all based on these type hints, they give it many advantages and benefits.