Can't retrieve groups metadata.

[nigini]

Platform: Ubuntu
Python version: 3.8
Pyzotero version: 1.5.2

Problem Description

• What were you trying to do?
  I am trying to retrieve the metadata about the current api_key groups as described here: https://pyzotero.readthedocs.io/en/latest/#zotero.Zotero.groups

• What API call did it involve

zot = zotero.Zotero(test_conf['library_id'], test_conf['library_type'], test_conf['api_key'])
zot_library = zot.groups()

• What error was raised?
  No error, the call goes through just fine. The problem is, even though I can retrieve items with items = zot.top(limit=5) and I can see the metadata about the group in each item correctly, the zot.groups() call is returning an empty list.

More Details

The api_key I am using is configured as follows:

• Personal Library: none
• Default Group Permissions: none
• Per Group Permissions: 'read/write' for one group only.