text: const mongoose = require("mongoose");
  
  const BillingSchema = new mongoose.Schema({
    username: {
      type: String,
      required: true,
      unique: false
    },
    email: {
      type: String,
      required: true,
      unique: false
    },
    subscriptionID: {
      type: String,
      required: true,
      unique: false
    },
    subscriptionType: {
      type: String,
      required: true,
      unique: false
    },
    amountBilled: {
      type: Number,
      required: true,
      unique: false
    },
    subscriptionStartDate: {
      type: Number,
      required: true,
      unique: false
    },
    subscriptionEndDate: {
      type: Number,
      required: true,
      unique: false
    }
  });
  const BillingModel = mongoose.model("Billing", BillingSchema);
  module.exports = BillingModel;
  