NAME
Net::NicoVideo::Content::MylistItem - item_type and item_id by video_id
SYNOPSIS
Net::NicoVideo::Content::MylistItem->new({
    item_type   => 0,
    item_id     => 'sm00000000',
    description => 'mylist comment',
    token       => '12345678-1234567890-abcdef0123456789abcdef0123456789abcdef01',
    });
DESCRIPTION
Parsed content of the page http://www.nicovideo.jp/mylist_add/video/${video_id}.
An important thing that this page is having "item_type" and "item_id" for specific $video_id, and "token" to update Mylist.