async def METHOD_NAME(request: web.Request) -> web.Response:
    """List keys in the authorized_keys file.
    GET /server/ssh_keys
    -> 200 OK {"public_keys": [{"key_md5": md5 hex digest, "key": key string}]}
    (or 403 if not from the link-local connection)
    """
    return web.json_response(  # type: ignore[no-untyped-call,no-any-return]
        {
            "public_keys": [
                {"key_md5": details[0], "key": details[1]} for details in get_keys()
            ]
        },
        status=200,
    )