index.js
function tiler(root, options) {
    this.root = root;
    options = options || {};
    options.packSize = options.packSize || 128;
    if (!options.storageFormat) {
        options.storageFormat = guessStorageFormat(root);
    }
    this.options = options;
}
function tiler(root, options) {
    this.root = root;
    options = options || {};
    options.packSize = options.packSize || 128;
    if (!options.storageFormat) {
        options.storageFormat = guessStorageFormat(root);
    }
    this.options = options;
}
function tiler ( root , options ) { this . root = root ; options = options || { } ; options . packSize = options . packSize || 128 ; if ( ! options . storageFormat ) { options . storageFormat = guessStorageFormat ( root ) ; } this . options = options ; }
Constructor for the tiler-arcgis-bundle

@param {String} root - the root folder of ArcGIS bundle tiles, where the Conf.xml stands.
@param {Object} options - options passed in.
@param {integer} options.packSize - packet size.
@param {String} options.storageFormat - bundle storage format.
@class
Constructor for the tiler - arcgis - bundle