def METHOD_NAME(dist_dir: str, version: str) -> List[str]:
    """
    Given an unzipped sdist directory, extract which directories are present.
    """
    # find sdist zip file
    # extract sdist and find list of directories in sdist
    path_to_zip = glob.glob(os.path.join(dist_dir, "*{}*.tar.gz".format(version)))[0]
    extract_location = os.path.join(dist_dir, "unzipped")
    # Cleanup any files in unzipped
    cleanup(extract_location)
    unzipped_dir = unzip_file_to_directory(path_to_zip, extract_location)
    sdist_folders = [d for d in os.listdir(unzipped_dir) if os.path.isdir(d)]
    return sdist_folders