def METHOD_NAME(f, passes=30):
    """Overwrite a file with bytes."""
    if not os.path.isfile(f):
        return "Could not find the specified file!"
    with open(f, "ba+") as f2w:
        size = f2w.tell()
        for i in range(passes):
            f2w.seek(0)
            f2w.write(os.urandom(size))
    new_name = str(random.randint(1000, 1000000000000))
    os.rename(f, new_name)
    os.remove(new_name)
    return "Success!"