Example code for RSS Parser 2.0.0 add-on does NOT work

[ssssct]

Description of the problem

In the RSS Parser 2.0.0 add-on, the example code provided in the Addon Manual does NOT work.
The example provided in the EE docs works though.

How To Reproduce
Steps to reproduce the behavior:

1. Navigate to cp/addons
2. Install RSS Parser 2.0
3. Click on the gear icon
4. Choose Manual in the drop down menu (see: cp/addons/manual/rss_parser)
5. Copy/paste the provided code in a template.
6. Render the template page.

Possible Solution
The example provided in the EE docs works
https://docs.expressionengine.com/latest/add-ons/rss-parser.html#example