def METHOD_NAME(cls):
    """
    Generates a GET response of (invalid) HTML lacking any caption tracks within it.
    This fake HTML is nevered rendered; it's only intended as a source for a regex
    search
    """
    html_with_no_caption_tracks = "<b>No caption URL info for regex to find here</b>"
    return cls.MockResponse(html_with_no_caption_tracks)