async def METHOD_NAME(
    client: httpx.AsyncClient,
    auth: httpx.BasicAuth,
    faker: Faker,
    mocked_webserver_service_api_base: MockRouter,
):
    # Mocks /projects/{project_id}:clone
    mocked_webserver_service_api_base.post(
        path__regex=r"/projects/(?P<project_id>[\w-]+):clone$",
        name="project_clone",
    ).respond(
        status.HTTP_404_NOT_FOUND,
        json={"message": "you should not read this message from the WEBSERVER_MARK"},
    )
    # tests unknown study
    unknown_study_id = faker.uuid4()
    resp = await client.post(f"/v0/studies/{unknown_study_id}:clone", auth=auth)
    assert resp.status_code == status.HTTP_404_NOT_FOUND
    errors: list[str] = resp.json()["errors"]
    assert any("WEBSERVER_MARK" not in error_msg for error_msg in errors)
    assert any(unknown_study_id in error_msg for error_msg in errors)