Howard Miller tarafından yapılan gönderiler

Core developers 'ın resmi Documentation writers 'ın resmi Particularly helpful Moodlers 'ın resmi Peer reviewers 'ın resmi Plugin developers 'ın resmi

I'm trying to add subplugins to my local plugin and understand that I have to create a subplugins.php file. However, I can't figure out what the correct/latest format is. 

I've found MDL-83705 but I'm just (more) confused. 

{
    "subplugintypes": {
        "assignsubmission": "submission",
        "assignfeedback": "feedback"
    },
    "plugintypes": {
        "assignsubmission": "mod/assign/submission",
        "assignfeedback": "mod/assign/feedback"
    }
}

In the example, from the ticket, what's the difference between 'subplugintypes' and 'plugintypes' (and why)?

EDIT:

I'm getting grief about a 'plugininfo' class but I can't find any documentation about what should be in there?