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 check if a string contains more than 20 characters.
user
def check_string_length(s):
    if len(s) > 20:
        return true
    else:
        return false`
assistant