Classes

class MyClass(object):
    # For instance methods, omit type for "self"
    def my_method(self, num, str1):
        # type: (int, str) -> str
        return num * str1
 
    # The "__init__" method doesn't return anything, so it gets return
    # type "None" just like any other method that doesn't return anything
    def __init__(self):
        # type: () -> None
        pass
 
# User-defined classes are valid as types in annotations
x = MyClass()  # type: MyClass