6850     return function parallel(tasks, callback) {  argument
6964   function series(tasks, callback) {  argument
7093   function parallelLimit(tasks, limit, callback) {  argument
7199   function tryEach(tasks, callback) {  argument
7250   function checkWaterfallTasks(tasks, callback) {  argument
7330   function waterfall(tasks, callback) {  argument
7421   function angelFall(tasks, callback) {  argument
7987     function push(tasks, callback) {  argument
7991     function unshift(tasks, callback) {  argument
8008     function _insert(tasks, callback, unshift) {  argument
8036     function _next(q, tasks) {  argument
8184     function push(tasks, priority, callback) {  argument
8233   function auto(tasks, concurrency, callback) {  argument
8375   function autoInject(tasks, concurrency, callback) {  argument
8578   function iterator(tasks) {  argument
8915   function race(tasks, callback) {  argument
9121   function reflectAll(tasks) {  argument