You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cfg2jobsubs.m
    path of file: ./repos/ExploreASL/External/SPMmodified/matlabbatch/@cfg_branch
    
    the code of the file until where you have to start completion: function jsubs = cfg2jobsubs(item, subs)


    
function jsubs = cfg2jobsubs(item, subs)

% function jsubs = cfg2jobsubs(item, subs)
% Return the subscript into the job tree for a given subscript vector into
% the val part of the cfg tree. In a cfg_branch, this is a struct reference
% to a field with the name of the tag of the corresponding child node.
%
% This code is part of a batch job configuration system for MATLAB. See 
%      help matlabbatch
% for a general overview.
%_______________________________________________________________________
% Copyright (C) 2007 Freiburg Brain Imaging

% Volkmar Glauche
% $Id: cfg2jobsubs.m 1862 2008-06-30 14:12:49Z volkmar $

rev = '$Rev: 1862 $'; %#ok

% Only de-reference subscripts into .val{x} field
if isequal(subs(1), substruct('.','val')) && strcmp(subs(2).type, '{}')
    % return possible indices into .val{1} field
    citem = subsref(item, subs(1:2));
    if numel(subs) > 2
        jsubs1 = cfg2jobsubs(citem, subs(3:end