async def METHOD_NAME(request: web.Request):
    """Check scheduled_maintenance table in redis"""
    redis_client = get_redis_scheduled_maintenance_client(request.app)
    hash_key = "maintenance"
    # Examples.
    #  {"start": "2023-01-17T14:45:00.000Z", "end": "2023-01-17T23:00:00.000Z", "reason": "Release 1.0.4"}
    #  {"start": "2023-01-20T09:00:00.000Z", "end": "2023-01-20T10:30:00.000Z", "reason": "Release ResistanceIsFutile2"}
    # NOTE: datetime is UTC (Canary islands / UK)
    if maintenance_data := await redis_client.get(hash_key):
        assert (  # nosec
            parse_obj_as(_ScheduledMaintenanceGet, maintenance_data) is not None
        )
        return envelope_json_response(maintenance_data)
    response = web.json_response(status=web.HTTPNoContent.status_code)
    assert response.status == 204  # nosec
    return response