def test1():
    url1 = "http://api.tld"
    requests.get(url1)


def test2():
    url2 = "http://api.tld/user/{0}".format(user_id)
    requests.get(url2)

def test3():
    url3 = f"http://api.tld/user/{user_id}"
    requests.get(url3)
    requests.get(url4)

def test1():
    requests.get("http://api.tld")
    requests.get("http://api.tld/user/{0}".format(user_id))
    requests.get(f"http://api.tld/user/{user_id}")

def download_stuff(identifier, data):
    directory = "/tmp"
    attachments = data.get("attachments", [])

    attachment_url = attachments[0].get("attachment_url", "")

    try:
        response = requests.get(attachment_url, timeout=300)
        response.raise_for_status()
    except requests.exceptions.RequestException:
        return (False, "")

def test1():
    requests.get("https://api.tld")
    requests.get("https://api.tld/user/{0}".format(user_id))
    requests.get(f"https://api.tld/user/{user_id}")
    requests.get(f"http://localhost/user/{user_id}") # localhost and 127.0.0.1 are safe