How to use the fastai.io.get_data function in fastai

def get_cifar():
    if os.path.exists(Path.home()/'efs_mount_point/cifar10.tgz'):
        shutil.copy2(Path.home()/'efs_mount_point/cifar10.tgz', 'data/cifar10.tgz')
    else:
        cifar_url = 'http://files.fast.ai/data/cifar10.tgz' # faster download
        # cifar_url = 'http://pjreddie.com/media/files/cifar.tgz'
        io.get_data(cifar_url, 'data/cifar10.tgz')

def download_cifar10(data_path):
    # (AS) TODO: put this into the fastai library
    def untar_file(file_path, save_path):
        if file_path.endswith('.tar.gz') or file_path.endswith('.tgz'):
            obj = tarfile.open(file_path)
            obj.extractall(save_path)
            obj.close()
            os.remove(file_path)

    cifar_url = 'http://files.fast.ai/data/cifar10.tgz' # faster download
    # cifar_url = 'http://pjreddie.com/media/files/cifar.tgz'
    io.get_data(cifar_url, args.data+'/cifar10.tgz')
    untar_file(data_path+'/cifar10.tgz', data_path)
    # Loader expects train and test folders to be outside of cifar10 folder
    shutil.move(data_path+'/cifar10/train', data_path)
    shutil.move(data_path+'/cifar10/test', data_path)

def download_cifar10(data_path):
    # (AS) TODO: put this into the fastai library
    def untar_file(file_path, save_path):
        if file_path.endswith('.tar.gz') or file_path.endswith('.tgz'):
            obj = tarfile.open(file_path)
            obj.extractall(save_path)
            obj.close()
            os.remove(file_path)

    cifar_url = 'http://files.fast.ai/data/cifar10.tgz' # faster download
    # cifar_url = 'http://pjreddie.com/media/files/cifar.tgz'
    io.get_data(cifar_url, args.data+'/cifar10.tgz')
    untar_file(data_path+'/cifar10.tgz', data_path)
    # Loader expects train and test folders to be outside of cifar10 folder
    shutil.move(data_path+'/cifar10/train', data_path)
    shutil.move(data_path+'/cifar10/test', data_path)