Get accurately defined size of datatype string

[Stephan1973]

Is it possible to get the defined string size from a sructure

Struct definition:

var playerSchema = new _.Schema({
    name: _.type.string(16)
});

Struct use:

var buf = _.packSync('Player', {
    name: 'Foobar'
});

In this case i want get the defined string length of name (16) an not the length of "Foobar".

Thanks for helping Stephan