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: aamod_MP2RAGE.m
    path of file: ./repos/automaticanalysis/aa_modules
    
    the code of the file until where you have to start completion: % AA module
% [aap,resp]=aamod_MP2RAGE(aap,task,subj)
% Take the Inverse Contrast 2 (IC2) and Flat images of an MP2RAGE and obtain a 
% single, BETted (skull stripped) MP2RAGE structural image...
% The IC2 image is useful for BET
% The Flat image contains the image contrast
% This works similarly to bet_robust +
% It corrects bias fields in the structural images!

function [aap,resp]=aamod_MP2RAGE(aap,task,subj)

resp='';

switch task
    case 'domain'
        resp='subject';  % this module needs to be run once per subject
        
    case 'description'
        r
    
function [aap,resp]=aamod_MP2RAGE(aap,task,subj)

resp='';

switch task
    case 'domain'
        resp='subject';  % this module needs to be run once per subject
        
    case 'description'
        resp='SPM5 align';
        
    case 'summary'
        subjpath=aas_getsubjpath(subj);
        resp=sprintf('Align %s\n',subjpath);
        
    case 'report'
        
    case 'doit'
        
        % @@@ FIGURE OUT WAY OF MAKING THIS WORK WITH DEFAULT BET FUNCTIONS?

        % Look for mean functional
        mEPIimg = aas_getimages_bystream(aap,subj,'meanepi');
        if isempty(mEPIimg)
            aas_log(aap, true, 'Problem finding mean functional image.');
        elseif size(mEPIimg,1) > 1
            aas_log(aap, false, 'Found more than 1 mean functional images, using first.');
            mEPIimg = deblank(mEPIimg(1,:));
        end