fyi.opensocial.calendarPermissions

{
  "detail": "See events in your groups' calendars and RSVP",
  "permissions": [
    {
      "action": [
        "read",
        "create",
        "update",
        "delete"
      ],
      "authority": "*",
      "collection": [
        "community.lexicon.calendar.rsvp"
      ],
      "resource": "space",
      "skey": "self",
      "spaceType": "fyi.opensocial.events",
      "type": "permission"
    }
  ],
  "title": "Calendar",
  "type": "permission-set"
}