\
    Extracts the cable's reference identifier from the provided HTML string.

    `html`
        The HTML page of the cable.

def reference_id_from_html(html):
    """\
    Extracts the cable's reference identifier from the provided HTML string.

    `html`
        The HTML page of the cable.
    """
    m = _REFERENCE_ID_FROM_HTML_PATTERN.search(html)
    if m:
        return m.group(1)
    raise ValueError("Cannot extract the cable's reference id")