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
given two arguments, x and y, write a function that returns the greatest of the two numbers.
user
def greatest_of_two(x, y):
    if x > y:
        return x
    else:
        return y
assistant