text: let mongoose = require('mongoose');
  
  /**
  * @swagger
  * definitions:
  *   VehicleType:
  *     properties:
  *       model_name:
  *          type: string
  *       model_desc:
  *          type: string
  *       is_active:
  *          type: boolean
  */
  let VehicleTypeSchema = new mongoose.Schema({
    model_name: { type:String, require: true, unique: true},
    model_desc:String,
    is_active:Boolean,
    update_at: { type:Date, default: Date.now},
  });
  
  module.exports = mongoose.model('VehicleType', VehicleTypeSchema);
  