lib/usergrid/class_statics.js
function(names) {
        var attributes = Array.prototype.slice.call(arguments);
        attributes = _.without(attributes, this.getMetadataAttributes(true));
        this._usergrid.attrs = attributes;
      }
function(names) {
        var attributes = Array.prototype.slice.call(arguments);
        attributes = _.without(attributes, this.getMetadataAttributes(true));
        this._usergrid.attrs = attributes;
      }
defines properties for persistent attribute on instances of this class note: all immutable fields will be included regardless (as read only properties) names may be specified as individual strings or an array of strings