defining a variable in pythoon code example

Example 1: declare double python

def function(explicit_number: type) -> type:
    pass

Example 2: python variables

#Varibles Guide:
a = 5 #NUMBER
b = "Varibles!" #STRING
c = True #BOOLEN  Hey, this is an edit, sorry for having it as true not True, caps matter.
d = False #BOOLEN Hey, this is an edit, sorry for having it as false not False, caps matter.