Kata

I often find that I end up needing to write a function to return multiple values, in this case I would often split it up into two different functions but then I have to spend time thinking of a new function name! Wouldn't it be great if I could use same name for a function again and again...

In this kata your task is to make a decorator, FuncAdd which will allow function names to be reused and when called all functions with that name will be called (in order) and the results returned as a tuple.

@FuncAdd
def foo():
    return 'Hello'

@FuncAdd
def foo():
    return 'World'

foo() --> ('Hello', 'World')

As well as this you will have to implement two more things, a way of deleting a particular function, and a way of deleting all stored functions. The delete method must work as follows:

@FuncAdd
def foo():
    return 'Hello'
    
FuncAdd.delete(foo) # Delete all foo() functions only
foo() # Should raise NameError

And the clear method must work like this:

@FuncAdd
def foo():
    return 'Hello'
    
FuncAdd.clear() # Delete all decorated functions
foo() # Should raise NameError

The functions must also accept args and kwargs which would all be passed to every function.