validator: {
        $jsonSchema: {
          bsonType: 'object',
          required: ['name', 'lname'],
          properties: this.properties
               name: { bsonType: 'string' },
               lname: { bsonType: 'string' },
               enable: { bsonType: 'bool' },
               datecreation: { bsonType: 'date' }
        }
      }
    the }