module documentation
from Thinking in Python, Bruce Eckel https://python-3-patterns-idioms-test.readthedocs.io/en/latest/Observer.html
(c) Copyright 2008, Creative Commons Attribution-Share Alike 3.0.
Class support for "observer" pattern.
The observer class is the base class for all smartcard package observers.
| Class | |
Observable |
| Class | |
Observer |