def remove_null_proxy_kwarg(func):
def wrapper(*args, **kwargs):<EOL><INDENT>if '<STR_LIT>' in kwargs:<EOL><INDENT>del kwargs['<STR_LIT>']<EOL><DEDENT>return func(*args, **kwargs)<EOL><DEDENT>return wrapper<EOL>
decorator, to remove a 'proxy' keyword argument. For wrapping certain Manager methods