code: function nextTick(callback) {
  
        var context = this;
        var args = Array.prototype.slice.call(arguments, 1);
  
        // Do not schedule callback if not a valid function.
        if ('function' !== typeof callback) {
          return this;
        }
  
        // Execute callback on next tick.
        process.nextTick(function nextTickHandler() {
          context.debug('nextTick', callback.name);
          callback.apply(context, args);
        });
  
        // @chainable
        return this;
  
      }
docs: Call Method on Next Tick.
  
  @param callback
  @returns {*}