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: convertMNIST.m
    path of file: ./repos/mnist-matlab
    
    the code of the file until where you have to start completion: function [ dataset ] = convertMNIST( image_file, label_file )
%CONVERTMNIST Converts the original MNIST dataset into MATLAB format.

    
function [set] = load_set(set_name)
        
        original_path     = 'original/';
        uncompressed_path = '.uncompressed/';

        set_image_file = [set_name '-images-idx3-ubyte'];
        set_label_file = [set_name '-labels-idx1-ubyte'];

        original_image_file = [original_path set_image_file '.gz'];
        original_label_file = [original_path set_label_file '.gz'];

        disp(['Unzipping ' original_image_file ' ...']);
        gunzip(original_image_file, uncompressed_path);

        disp(['Unzipping ' original_label_file ' ...']);
        gunzip(original_label_file, uncompressed_path);

        set = convertMNIST([uncompressed_path set_image_file], [uncompressed_path set_label_file]);
        
    end