Decorator allow us to enrich a function. Singleton, timer, slowdown etc are usecases which can be implemented using python decorator
Other video links:
1. Python *args, **kwargs (Hindi): https://youtu.be/6MeEdsXPI6c
2. Function in Python (Hindi): https://youtu.be/M2vRqHG7EvM
3. Python Iterator, Iterable in Hindi : https://youtu.be/_Vx8HQoY_cw
4. Python Generator Functions in Hindi: https://youtu.be/-ml3HDkYSoA
5. Python itertools in Hindi: https://youtu.be/LQprvWI4Pck
6. Python lambda function : https://youtu.be/cfWW4M62JCc
7. Python map function : https://youtu.be/D493ixs9ZYY
8. Python filter function: https://youtu.be/lW66v4rzZwI
