code: function executeCallbacks(args, depsNotFound) {
  	      // accept function as argument
  	      if (args.call) args = {
  	        success: args
  	      }; // success and error callbacks
  
  	      if (depsNotFound.length) (args.error || devnull)(depsNotFound);else (args.success || devnull)(args);
  	    }
docs: Execute callbacks.
  @param {Object or Function} args - The callback args
  @param {string[]} depsNotFound - List of dependencies not found