def METHOD_NAME(content: data.Content, content_revision: data.ContentRevisionRO, comments) -> str:
    if len(comments) == 0:
        return ""
    first_comment = comments[0]
    thread = THREAD_MESSAGE.format(
        posting_time=format_datetime(first_comment.created, locale=get_locale()),
        comment_owner=first_comment.owner.display_name,
        comment_content=first_comment.raw_content_as_raw_text(),
    )
    if len(comments) == 1:
        return thread
    thread_closing_tags = ""
    for comment in comments[1:]:
        thread += (
            '<blockquote style="border-left: solid 2px #999; margin-left: 1em; padding-left: 1em;">'
        )
        thread += THREAD_MESSAGE.format(
            posting_time=format_datetime(comment.created, locale=get_locale()),
            comment_owner=comment.owner.display_name,
            comment_content=comment.raw_content_as_raw_text(),
        )
        thread_closing_tags += "</blockquote>"
    thread += thread_closing_tags
    return thread