def METHOD_NAME(escalation_chain_internal_api_setup, make_user_auth_headers):
    user, token, escalation_chain = escalation_chain_internal_api_setup
    client = APIClient()
    url = reverse("api-internal:escalation_chain-list")
    response = client.get(url, **make_user_auth_headers(user, token))
    assert response.status_code == status.HTTP_200_OK
    assert response.json() == [
        {
            "id": escalation_chain.public_primary_key,
            "name": escalation_chain.name,
            "number_of_integrations": 0,
            "number_of_routes": 0,
            "team": None,
        }
    ]