let Endless;

function _init() {
    // this is imports.gi.Endless
    Endless = this;

    // Override Endless.PageManager.add() so that you can set child properties
    // at the same time
    Endless.PageManager.prototype._add_real = Endless.PageManager.prototype.add;
    Endless.PageManager.prototype.add = function(child, props) {
        this._add_real(child);
        if(typeof(props) !== 'undefined') {
            for(let prop_id in props) {
                this.child_set_property(child, prop_id, props[prop_id]);
            }
        }
    }
}