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: process_evt_import.m
    path of file: ./repos/brainstorm3/toolbox/process/functions
    
    the code of the file until where you have to start completion: function varargout = process_evt_import( varargin )
% PROCESS_EVT_IMPORT: Import events into a raw file

% @=============================================================================
% This function is part of the Brainstorm software:
% https://neuroimage.usc.edu/brainstorm
% 
% Copyright (c) University of Southern California & McGill University
% This software is distributed under the terms of the GNU General Public License
% as published by the Free Software Foundation. Further details on the GPLv3
% license can be found at http://www.gnu.org/copyleft/gpl.html.
% 
% FOR RESEARCH PURPOSES ONLY. THE SOFTWARE IS PROVIDED "AS IS," AND THE
% UNIVERSITY OF SOUTHERN CALIFORNIA AND ITS COLLABORATORS DO NOT MAKE ANY
% WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
% MERCHANTABILITY AND FITNESS FOR A PARTIC
    
function sProcess = GetDescription() %#ok<DEFNU>
    % Description the process
    sProcess.Comment     = 'Import from file';
    sProcess.Category    = 'File';
    sProcess.SubGroup    = 'Events';
    sProcess.Index       = 41;
    sProcess.Description = 'https://neuroimage.usc.edu/brainstorm/Tutorials/EventMarkers#Other_menus';
    % Definition of the input accepted by this process
    sProcess.InputTypes  = {'raw', 'data'};
    sProcess.OutputTypes = {'raw', 'data'};
    sProcess.nInputs     = 1;
    sProcess.nMinFiles   = 1;
    % File selection options
    SelectOptions = {...
        '', ...                               % Filename
        '', ...                               % FileFormat
        'open', ...                           % Dialog type: {open,save}
        'Import events...', ...               % Window title
        'ImportData', ...                     % LastUsedDir: {ImportData,ImportChannel,ImportAnat,ExportChannel,ExportData,ExportAnat,ExportProtocol,ExportImage,ExportScript}
        'single', ...                         % Selection mode: {single,multiple}
        'files', ...                          % Selection mode: {files,dirs,files_and_dirs}
        bst_get('FileFilters', 'events'), ... % Get all the available file formats
        'EventsIn'};                          % DefaultFormats: {ChannelIn,DataIn,DipolesIn,EventsIn,MriIn,NoiseCovIn,ResultsIn,SspIn,SurfaceIn,TimefreqIn
    % Option: Event file
    sProcess.options.evtfile.Comment = 'Event file:';
    sProcess.options.evtfile.Type    = 'filename';
    sProcess.options.evtfile.Value   = SelectOptions;
    % Option: Event name
    sProcess.options.evtname.Comment = 'Event name:';
    sProcess.options.evtname.Type    = 'text';
    sProcess.options.evtname.Value   = 'New';
    % Option: Delete existing events
    sProcess.options.delete.Comment = 'Delete existing events';
    sProcess.options.delete.Type    = 'checkbox';
    sProcess.options.delete.Value   = 0;
end