text: const mongoose = require('mongoose');
  const { Schema } = mongoose;
  const Bon = new Schema({
  	_bon_numero: {
  		type: String
  	},
  	_bon_date: {
  		type: Date
  	},
  	_bon_type: {
  		type: String
  	},
  	Facture: {
  		type: Schema.Types.ObjectId,
  		required: true,
  		ref: 'Facture'
  	}
  }, { timestamps: true });
  
  mongoose.model('Bon', Bon);