using multiple modules in go code example

Example 1: how to know all methods in a module in python

>>> import re
>>> dir(re)

Example 2: how to add two classes in jq

$("p").addClass("myClass yourClass");

Example 3: create and use python classes

class Mammal:
    def __init__(self, name):
        self.name = name

    def walk(self):
        print(self.name + " is going for a walk")


class Dog(Mammal):
    def bark(self):
        print("bark!")


class Cat(Mammal):
    def meow(self):
        print("meow!")


dog1 = Dog("Spot")
dog1.walk()
dog1.bark()
cat1 = Cat("Juniper")
cat1.walk()
cat1.meow()