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: cnn_imagenet_camdemo.m
    path of file: ./repos/Image-Text-Embedding/examples/imagenet
    
    the code of the file until where you have to start completion: function cnn_imagenet_camdemo()
%CNN_IMAGENET_CAMDEMO Realtime classification with a webcam
%   Download the pre-trained models from
%   http://www.vlfeat.org/matconvnet/pretrained/
%
%   Download MATLAB's webcam support from:

    
function cnn_imagenet_camdemo()
%CNN_IMAGENET_CAMDEMO Realtime classification with a webcam
%   Download the pre-trained models from
%   http://www.vlfeat.org/matconvnet/pretrained/
%
%   Download MATLAB's webcam support from:
%   http://mathworks.com/hardware-support/matlab-webcam.html

run(fullfile(fileparts(mfilename('fullpath')), ...
  '..', '..', 'matlab', 'vl_setupnn.m')) ;

cam = webcam(1) ;
run matlab/vl_setupnn ;
model = 'imagenet-googlenet-dag' ;
%model = 'imagenet-vgg-m' ;
%model = 'imagenet-vgg-f' ;
net = load(fullfile(vl_rootnn, 'data', 'models', sprintf('%s.mat', model))) ;

if strcmp(model, 'imagenet-googlenet-dag')
  net = dagnn.DagNN.loadobj(net) ;
  out = net.getVarIndex('prob') ;
  dag = true ;
else
  dag = false ;
end