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: bv2biosig_events.m
    path of file: ./repos/fieldtrip/external/biosig/private
    
    the code of the file until where you have to start completion: function HDR=bv2biosig_events(EVENT)
% BV2BIOSIG_EVENTS converts VMRK marker information BioSig Event codes. 
%  according to biosig/doc/eventcodes.txt. 
%  Currently, the convention of the BerlinBCI is implemented and supported. 
%
%  HDR = bv2biosig_events(arg1)   
%
%  arg1 can be an HDR-struct containg  HDR.EVENT.Desc 

    
function HDR=bv2biosig_events(EVENT)
% BV2BIOSIG_EVENTS converts VMRK marker information BioSig Event codes. 
%  according to biosig/doc/eventcodes.txt. 
%  Currently, the convention of the BerlinBCI is implemented and supported. 
%
%  HDR = bv2biosig_events(arg1)   
%
%  arg1 can be an HDR-struct containg  HDR.EVENT.Desc 
%  or a struct containing EVENT.Desc 
%  or a cell-array Desc
%  or a char-array Desc 
% 
%  Warning: Approximately 32 (out of 510) events are currently not supported. 
%  For your data, you can check this with this command: 
%  HDR.EVENT.Desc(HDR.EVENT.TYP==0) 
% 
% see also: doc/eventcodes.txt

%	$Id$
%	Copyright (C) 2006,2007 by Alois Schloegl <a.schloegl@ieee.org>	
%    	This is part of the BIOSIG-toolbox http://biosig.sf.net/

% This library is free software; you can redistribute it and/or
% modify it under the terms of the GNU Library General Public
% License as published by the Free Software Foundation; either
% Version 2 of the License, or (at your option) any later version.
%
% This library is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
% Library General Public License for more details.
%
% You should have received a copy of the GNU Library General Public
% License along with this library; if not, write to the
% Free Software Foundation, Inc., 59 Temple Place - Suite 330,
% Boston, MA  02111-1307, USA.


HDR.EVENT.Desc = []; 
if isfield(EVENT,'EVENT')
	HDR = EVENT; 
elseif isfield(EVENT,'Desc')
	HDR.EVENT = EVENT; 
elseif iscell(EVENT)
	HDR.EVENT.Desc = EVENT; 
elseif ischar(EVENT)
	for k=1:size(EVENT,1),
		HDR.EVENT.Desc{k} = EVENT(k,:); 
	end