// internally saved as this:
{ _id: 'james-bond', name: 'James Bond', gender: 'Male', age: 45 },
{ _id: 'jason-bourne', name: 'Jason Bourne', gender: 'Male', age: 36 },
// with this fields definition:
_id: { type: 'string', mask: 'code' },
name: { type: 'string', mask: 'fullName' },
gender: { type: 'string', mask: 'sex' },
age: { type: 'integer', hidden: true }
// and execute this method:
dab.find({ collection: 'agents' })
// will return this result set:
{ code: 'james-bond', fullName: 'James Bond', sex: 'Male' },
{ code: 'jason-bourne', fullName: 'Jason Bourne', sex: 'Male' },