class Dog:

    def bark(self):
        print("Woof!")

    def roll(self):
        print("*rolling*")

    def greet(self):
        print("Greetings, master")

    def speak(self):
        print("I cannot!")

# Creating the Dog class instance and saving it to the variable 
clyde = Dog()
clyde.bark()   # --> Woof!
clyde.roll()   # --> *rolling*
clyde.greet()  # --> Greetings, master
clyde.speak()  # --> I cannot!

# Creating another Dog instance
jenkins = Dog()
jenkins.bark()  # --> Woof!
jenkins.roll()  # --> *rolling*
# .. And other methods
# .. Infinite objects can be created this way, all implementing the same methods defined in our class