async def METHOD_NAME(backend_asgi_app, alice_ws, alice2, bob):
    revoked_user_certificate = RevokedUserCertificate(
        author=alice2.device_id, timestamp=DateTime.now(), user_id=bob.user_id
    ).dump_and_sign(alice2.signing_key)
    rep = await user_revoke(alice_ws, revoked_user_certificate=revoked_user_certificate)
    assert isinstance(rep, UserRevokeRepInvalidCertification)