as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
write a code to create a class called 'dog'
user
class dog:
    def __init__(self, name, breed, age):
        self.name = name
        self.breed = breed
        self.age = age

    def bark(self):
        print("woof!")
assistant