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: GCO_ListHandles.m
    path of file: ./repos/microshift_compression/matlab code/Toolkits/gco-v3.0/matlab
    
    the code of the file until where you have to start completion: function Handles = GCO_ListHandles()
% GCO_ListHandles     Retrieve handles to all current GCO instances
%    Useful for cleaning up GCO instances that are using memory,
%    particularly when a script was interrupted.

    
function Handles = GCO_ListHandles()
% GCO_ListHandles     Retrieve handles to all current GCO instances
%    Useful for cleaning up GCO instances that are using memory,
%    particularly when a script was interrupted.
%    Example:
%        GCO_Delete(GCO_ListHandles);  % delete all GCO instances

GCO_LoadLib();
Handles = gco_matlab('gco_listhandles');
end