human
Solve the following python programming problem given the following code:
def checkpassword_dict(user_password_dict) : 
    'Returns a checkpassword function which checks credentials
    against a dictionary of the form: {username : password}.

    If you want a simple dictionary-based authentication scheme, use
    checkpassword_dict(my_credentials_dict) as the value for the
    checkpassword argument to basic_auth().
    ' 
    def checkpassword(realm, user, password) : 
        p = user_password_dict.get (user) 
        return ((p and (p == password)) or False) 
return user_password_dict 

    
    

    Fix the buggy line: return user_password_dict
assistant
#Here is Python code to fix the buggy line: return user_password_dict
.

return def checkpassword(