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_bug2570.m
    path of file: ./repos/fieldtrip/test
    
    the code of the file until where you have to start completion: function test_bug2570

% WALLTIME 00:10:00
% MEM 1gb
% DEPENDENCY ft_apply_montage ft_scalingfactor
% DATA no

montage = [];
montage.tra = 1e6;
montage.labelold = {'Cz'};
montage.labelnew = {'Cz'};
montage.chanunitold = {'V'};
montage.chanunitnew = {'uV'};

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

output = ft_apply_montage(montage, montage);
assert(isequal(output, montage)); % it should not have changed

output = ft_apply_montage(montage, montage, 'inverse', 1);
assert(isequal(output.tra, 1)); % this should be an identity transform
assert(isequal(output.chanunitold, output.chanunitnew));

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

data_V = [];
data_V.label = {'Cz'};
data_V.time = {1:10};
data_V.trial = {ones(1,10)};
data_V.chanunit = {'V'};

data_mV = [];
data_mV.label = {'Cz'};
data_mV.time = {1:10};
data_mV.trial = {ones(1,10)*1000};
data_mV.chanunit = {'mV'};

data_uV = [];
data_uV.label = {'Cz'};

    
function test_bug2570

% WALLTIME 00:10:00
% MEM 1gb
% DEPENDENCY ft_apply_montage ft_scalingfactor
% DATA no

montage = [];
montage.tra = 1e6;
montage.labelold = {'Cz'};
montage.labelnew = {'Cz'};
montage.chanunitold = {'V'};
montage.chanunitnew = {'uV'};

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

output = ft_apply_montage(montage, montage);
assert(isequal(output, montage)); % it should not have changed

output = ft_apply_montage(montage, montage, 'inverse', 1);
assert(isequal(output.tra, 1)); % this should be an identity transform
assert(isequal(output.chanunitold, output.chanunitnew));

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

data_V = [];
data_V.label = {'Cz'};
data_V.time = {1:10};
data_V.trial = {ones(1,10)};
data_V.chanunit = {'V'};

data_mV = [];
data_mV.label = {'Cz'};
data_mV.time = {1:10};
data_mV.trial = {ones(1,10)*1000};
data_mV.chanunit = {'mV'};

data_uV = [];
data_uV.label = {'Cz'};
data_uV.time = {1:10};
data_uV.trial = {ones(1,10)*1000000};
data_uV.chanunit = {'uV'};

output1 = ft_apply_montage(data_V,  montage);
output2 = ft_apply_montage(data_mV, montage);
output3 = ft_apply_montage(data_uV, montage);

assert(isequal(output1, output2));
assert(isequal(output1, output3));
assert(isequal(output1, data_uV)); % they should all be in uV

output1 = ft_apply_montage(data_V,  montage, 'inverse', 'yes');
output2 = ft_apply_montage(data_mV, montage, 'inverse', 'yes');
output3 = ft_apply_montage(data_uV, montage, 'inverse', 'yes');

assert(isequal(output1, output2));
assert(isequal(output1, output3));
assert(isequal(output1, data_V)); % they should all be in V

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

data_T = [];
data_T.label = {'Cz'};
data_T.time = {1:10};
data_T.trial = {ones(1,10)};
data_T.chanunit = {'T'};

try
  ft_apply_montage(data_T,  montage);
  ok = false;
catch
  ok = true;
end