def METHOD_NAME(db, api_client, default_namespace):
    url = url_concat("/delta/streaming", {"timeout": 0.1, "cursor": "0"})
    r = api_client.get_raw(url)
    assert r.status_code == 200
    responses = r.get_data(as_text=True).split("\n")
    for response_string in responses:
        if response_string:
            validate_response_format(response_string)