Add some more descriptive type aliases

Provide RFC 7807-compliant problem details responses for the API.

"""

from typing import Optional

from typing import Any, Optional

ProblemResponse = tuple[dict, int, dict]

ResponseBody = dict[str, Any]

HttpStatusCode = int

HttpHeaders = dict[str, str]

ProblemResponse = tuple[ResponseBody, HttpStatusCode, HttpHeaders]

def unauthorized() -> ProblemResponse: