.How can we pass optional or keyword parameters from one function to another in Python

Python
1

How can we pass optional or keyword parameters from one function to another in Python?

2 
def myfunction(param1, param2=None)
    if param2 == None:
        #do something without param2
    else:
        #do something with param2

then you can use it like this

myfunction(15, 32) or
myfunction(15)