Documentación

import requests

proxy = "http://user:pass@residential.proxyhat.com:8080"
response = requests.get(
    "https://httpbin.org/ip",
    proxies={"http": proxy, "https": proxy}
)

const fetch = require('node-fetch');
const HttpsProxyAgent = require('https-proxy-agent');

const agent = new HttpsProxyAgent(
  'http://user:pass@residential.proxyhat.com:8080'
);
fetch('https://httpbin.org/ip', { agent });

proxyURL, _ := url.Parse(
  "http://user:pass@residential.proxyhat.com:8080",
)
client := &http.Client{
  Transport: &http.Transport{Proxy: http.ProxyURL(proxyURL)},
}
resp, _ := client.Get("https://httpbin.org/ip")