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: ft_layoutplot.m
    path of file: ./repos/fieldtrip
    
    the code of the file until where you have to start completion: function [cfg] = ft_layoutplot(cfg, data)

% FT_LAYOUTPLOT makes a figure with the 2-D layout of the channel positions
% for topoplotting and the individual channel axes (i.e. width and height
% of the subfigures) for multiplotting. A correct 2-D layout is a
% prerequisite  for plotting the topographical distribution of the
% potential or field distribution, or fo
    
function
cfg = ft_checkconfig(cfg, 'renamed', {'elecfile', 'elec'});
cfg = ft_checkconfig(cfg, 'renamed', {'gradfile', 'grad'});
cfg = ft_checkconfig(cfg, 'renamed', {'optofile', 'opto'});
cfg = ft_checkconfig(cfg, 'renamed', {'newfigure', 'figure'});

% set the defaults
cfg.box       = ft_getopt(cfg, 'box', 'yes');
cfg.mask      = ft_getopt(cfg, 'mask', 'yes');

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% extract or generate the layout information
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

tmpcfg = keepfields(cfg, {'layout', 'channel', 'rows', 'columns', 'commentpos', 'skipcomnt', 'scalepos', 'skipscale', 'projection', 'viewpoint', 'rotate', 'width', 'height', 'elec', 'grad', 'opto', 'showcallinfo', 'trackcallinfo', 'trackusage', 'trackdatainfo', 'trackmeminfo', 'tracktimeinfo', 'checksize'});
if hasdata
  layout = ft_prepare_layout(tmpcfg, data);
else
  layout = ft_prepare_layout(tmpcfg);
end