** in the def of function in python code example

Example 1: how to define function in python

def example():			#This defines it
  print("Example.")		#This is the defined commands

example()				#And this is the commands being run

Example 2: how to define a function in python

variable = "Hello, world!" # variable = string("Hello, world!")

#A simply function :

def Functiontest(): #define a function
  print("Hello, world!")
  print(variable)
 
#Function with components :

def Functiontestwithcomponent(arg1, arg2): # Define a function with two arguments, arg1 and arg2.
  if arg1 == True: # Arguments can have any name, like variables.
    print(arg2)

#Call a function :
Functiontest() #Start Function.

#Call a function with two components :

Functiontestwithcomponent(True, "Hello, function!") #Start Function and precise two arguments :