Function authenticated 

pub async fn authenticated<S: AuthSchema>(
    ctx: &AuthContext<S>,
    request: &impl SessionRequest,
    direct: bool,
) -> AuthResult<Option<AuthenticatedRead<S>>>

Shared direct/nested get-session lifecycle for the explicitly migrated guards. Nested reads behave as GET even when their parent endpoint is POST.

Errors

Returns an error when validation, storage, or an application callback fails.