Overview:
  This resource applies the standard collection pattern to groups that a user
  is a member of.

Method GET:
  List all groups the user is a member of.

  Query Arguments:
    resolve_names=<boolean>
      Resolve names of personas.
    zone=<string>
      Filter groups by zone.
    provider=<string>
      Filter groups by provider.

Method POST:
  Add the user to a group.

  Query Arguments:
    zone=<string>
      Filter groups by zone.
    provider=<string>
      Filter groups by provider.

