_loop = function _loop(type) {
	if (!ExtensionType.hasOwnProperty(type)) {
		return 'continue';
	}
	API.plugin[dashesToCamels('add-' + ExtensionType[type])] = function (name, fn) {
		addExtension(ExtensionType[type], name, fn);
	};
}
Public method to extend Tick functionality