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: out_fieldtrip_timefreq.m
    path of file: ./repos/brainstorm3/toolbox/io
    
    the code of the file until where you have to start completion: function [ftData, TimefreqMat, neighbours] = out_fieldtrip_timefreq(TimefreqFile, ChannelFile)
% OUT_FIELDTRIP_TIMEFREQ: Converts a time-frequency file into a FieldTrip structure (ft_datatype_freq.m).
%
    
function "ft_sourcestatistics".');
end
% Apply default measure to TF values
if ~isreal(TimefreqMat.TF)
    % Get default function
    defMeasure = process_tf_measure('GetDefaultFunction', TimefreqMat);
    % Apply default function
    [TimefreqMat.TF, isError] = process_tf_measure('Compute', TimefreqMat.TF, TimefreqMat.Measure, defMeasure);
    if isError
        error(['Error: Invalid measure conversion: ' sMat.Measure ' => ' defMeasure]);
    end