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: getfintrf.m
    path of file: ./repos/prima/benchmark/rescue_idz/matlab/setup_tools
    
    the code of the file until where you have to start completion: function succ = getfintrf(directory)
%GETFINTRF gets the `fintrf.h` file of the current MATLAB and save it to `directory`.

% "directory" can be given by a full path or a path relative to the

    
function succ = getfintrf(directory)
%GETFINTRF gets the `fintrf.h` file of the current MATLAB and save it to `directory`.

% "directory" can be given by a full path or a path relative to the
% current directory. The following lines get its full path.
if nargin < 1
    directory = pwd();  % When "directory" is not given, we default it to the current directory
end