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: ft_getuserfun.m
    path of file: ./repos/malini/Codes/deconvolution - model/spm8/external/fieldtrip/private
    
    the code of the file until where you have to start completion: function func = ft_getuserfun(func, prefix)
% FT_GETUSERFUN will search the Matlab path for a function with the
% appropriate name, and return a function handle to the function.
% Considered are, in this order:
%  - the name itself, i.e. you get exactly the same func back as you put in;
%  - the name with the specified prefix;
%  - the name with 'ft_' and the specified prefix.
%
% For example, calling FT_GETUSERFUN('general', 'trialfun') might return a
% function named 'general', 'trialfun_general', or 'ft_trialfun_general',
% whichever of those is found first and is not a compatibility wrapper.
%
% func can be a function handle, in which case it is returned as-is.
%
% If no appropriate function is found, the empty array [] will be returned.

% Copyright (C) 2012, Eelke Spaak
%
% This file is part of FieldTrip, see http://www.ru.nl/neuroimaging/fieldtrip
% for the documentation and details.
%
%    FieldTrip is free software: you can redistribute it and/or modify
%    it under the terms of the GNU General Public License as published by
%    the Free Software Foundation, either version 3 of the License, or
%    (at your option) any later version.
%
%    FieldTrip 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 General Public License for more details.
%
%    You should have received a copy of the GNU General Public License
%    along with FieldTrip. If not, see <http://www.gnu.org/licenses/>.
%
% $Id: ft_getuserfun.m 7123 2012-12-06 21:21:38Z roboos $

if isa(func, 'function_handle')
  % treat function handle as-is
elseif isfunction(func) && ~iscompatwrapper(func)
  func = str2func(func);
elseif isfunction([prefix '_' func]) && ~iscompatwrapper([prefix '_' func])
  func = str2func([prefix '_' func]);
elseif isfunction(['ft_' prefix '_' func])

    
function func = ft_getuserfun(func, prefix)
% FT_GETUSERFUN will search the Matlab path for a function with the
% appropriate name, and return a function handle to the function.
% Considered are, in this order:
%  - the name itself, i.e. you get exactly the same func back as you put in;
%  - the name with the specified prefix;
%  - the name with 'ft_' and the specified prefix.
%
% For example, calling FT_GETUSERFUN('general', 'trialfun') might return a
% function named 'general', 'trialfun_general', or 'ft_trialfun_general',
% whichever of those is found first and is not a compatibility wrapper.
%
% func can be a function handle, in which case it is returned as-is.
%
% If no appropriate function is found, the empty array [] will be returned.

% Copyright (C) 2012, Eelke Spaak
%
% This file is part of FieldTrip, see http://www.ru.nl/neuroimaging/fieldtrip
% for the documentation and details.
%
%    FieldTrip is free software: you can redistribute it and/or modify
%    it under the terms of the GNU General Public License as published by
%    the Free Software Foundation, either version 3 of the License, or
%    (at your option) any later version.
%
%    FieldTrip 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 General Public License for more details.
%
%    You should have received a copy of the GNU General Public License
%    along with FieldTrip. If not, see <http://www.gnu.org/licenses/>.
%
% $Id: ft_getuserfun.m 7123 2012-12-06 21:21:38Z roboos $

if isa(func, 'function_handle')
  % treat function handle as-is
elseif isfunction(func) && ~iscompatwrapper(func)
  func = str2func(func);
elseif isfunction([prefix '_' func]) && ~iscompatwrapper([prefix '_' func])
  func = str2func([prefix '_' func]);
elseif isfunction(['ft_' prefix '_' func])
  func = str2func(['ft_' prefix '_' func]);
else
  warning(['no function by the name ''' func ''', ''' prefix '_' func...
    ''', or ''ft_' prefix '_' func ''' could not be found']);
  func = [];
end