Обсуждение: Truncate View

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/13/plpgsql-trigger.html
Description:

http://bit.ly/1w5ISeU
This states that all ON triggers are at the row level
I am trying to find details on how ON TRUNCATE will work for a view.
I understand that the trigger must be table level but have been unable to
find details.
Please add a truncate view example.
Thanks
Dave