NPM forms module: How to bind default values to widgets

I'm experimenting with the NPM forms module. it can be viewed here

I can't figure out how to bind values to the fields generated. i.e. how to preset the field content with existing values that I load from a json file.

Could someone familiar with this module please tell me how to set the value displayed in the widget when the form is displayed?

Annotated code below:

/* configObject is an object parsed from json I load from a file

each itemElement below contains:
 {
    "value": <a string>,
    "type": <a string - 'integer', 'float', 'string', or 'boolean'>,
    "length": <an integer>
 }

 i.e.
    fieldName1: {
        "value": "contentOfFieldName1",
        "type": "string",
        "length": 12
    }  

*/

_.each(configObject, function (itemElement, itemIndex) {
    if (['integer', 'float'].indexOf(itemElement['type']) >=0) {
        fieldType = 'number'
    } else {
        fieldType = itemElement['type'];
    }
    /* 
       At this point, itemElement.value = the value I want to insert as the visible value of the form field.
       How do I do this?
       I've tried newField.bind(itemElement.value);
       -----------------------------------------------------------------------------------------------------*/
    var newField = fields[fieldType]({required: true});

    //newField.bind(itemElement.value);  // no error but nothing happens

    formObject[itemIndex] = newField;

    //formObject[itemIndex].bind(itemElement.value);  // no error but nothing happens
    //formObject.bind({itemIndex: itemElement.value}); // error: formObject has no method 'bind' });