def METHOD_NAME():
    """
        Get already existing authors in the file system
    """
    global contest_to_authors
    default_value = {
        "normal": {},
        "gym": {}
    }
    contest_to_authors = default_value
    try:
        file_obj = open(get_metadata_filename(), "r")
    except IOError:
        return
    contest_to_authors = json.loads(file_obj.read())
    file_obj.close()