What is the correct way to create a function in python code example

Example 1: how to make a function in python

def test_function(argument1,argument2,argument3) :
  # Do something with the code, and the arguments.
  print(argument1)
  print(argument2)
  print(argument3)
  
# Calling the function.

test_function('Hello','World','!')

# Output
'''
Hello
World
!
'''

Example 2: how to add a function in python

#How to add a function in python

#Function
def new_function(): #Tells python to define a function
  print("Hello World!") #Here is where we put what the function should do
  
#Calling a function
new_function()
#Calling a function allows us to use the function at a specific time in our code