Generic method /getBalance implemented by multiple Captcha providers:
Usage example:
import fetchBalanceFromCaptchaProvider from "https://esm.town/v/augustohp/CaptchaGetBalance";
const remainingBalance = await fetchBalanceFromCaptchaProvider(Deno.env.get("CAPMONSTER_KEY"), "capmonster");
Migrated from folder: src/crawly/CaptchaGetBalance