text: const mongoose = require("mongoose");
  const passportLocalMongoose = require("passport-local-mongoose");
  
  // scheme
  const userScheme = mongoose.Schema({username: String, password: String, notes: [{title: String, content: String, quote: String}]});
  
  // use the passport-local-mongoose plugin for authentication purposes
  userScheme.plugin(passportLocalMongoose);
  
  // model derived by the scheme
  module.exports = mongoose.model("User", userScheme);