how can i implement a parse server cloud code function to write in firebase

Question

How can i implement a cloud Code function on back4app parse server to write data on firebase realtime. follow my first approach:

thanks for any help.

const fb = require('firebase');// not working
const Produto = Parse.Object.extend("Produto");
const Fornecedor = Parse.Object.extend("Fornecedor");
const Users = Parse.Object.extend("Users");

Parse.Cloud.define("CriarUsu", async(request)=>{
  const user = new Parse.User();
  const fb = new fb(); // not working
  return("tudo ok")
});