**args example

Example 1: python create a function with optional parameter

def some_function (self, a, b, c, d = None, e = None, f = None, g = None, h = None):
    #code

Example 2: python *args

# concatenate_keys.py
def concatenate(**kwargs):
    result = ""
    # Iterating over the keys of the Python kwargs dictionary
    for arg in kwargs:
        result += arg
    return result

print(concatenate(a="Real", b="Python", c="Is", d="Great", e="!"))