Look for a value which is a date and is before another date.
const users = data.model(
'users',
{name: String, created: Date},
{default: {created: new Date()}}
);
await data.insertOne(users, {name: 'foo'});
await data.findMany(users, {created: data.before(new Date())}); // returns {name: foo, created: Date}- Date
DataValue<'before', Date>