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: test_ft_read_sens.m
    path of file: ./repos/fieldtrip/test
    
    the code of the file until where you have to start completion: function test_ft_read_sens(datainfo, writeflag, version)

% MEM 1gb
% WALLTIME 00:20:00
% DEPENDENCY ft_read_sens
% DATA private

% writeflag determines whether the output should be saved to disk
% version determines the output directory

if nargin<1
  datainfo = ref_datasets;

    
function test_ft_read_sens(datainfo, writeflag, version)

% MEM 1gb
% WALLTIME 00:20:00
% DEPENDENCY ft_read_sens
% DATA private

% writeflag determines whether the output should be saved to disk
% version determines the output directory

if nargin<1
  datainfo = ref_datasets;
end
if nargin<2
  writeflag = 0;
end
if nargin<3
  version = 'latest';
end

[ftver, ftpath] = ft_version;
addpath([ftpath '/test']);

% make a subselection of the MEG datasets
use      = match_str({datainfo.datatype}, {'bti148' 'bti248' 'bti248grad' 'ctf151' 'ctf275' 'itab153' 'neuromag122' 'neuromag306'});
datainfo = datainfo(use);

for k = 1:numel(datainfo)
  dataset  = datainfo(k);
  filename = fullfile(dataset.origdir, 'original', dataset.type, dataset.datatype, dataset.filename);
  
  % get sensor information
  if ~isempty(dataset.dataformat)
    sens = ft_read_sens(filename, 'headerformat', dataset.dataformat);
  else
    sens = ft_read_sens(filename);
  end