Function check

prometheus_client/decorator.py:332–336

Make sure one passes the expected number of arguments

(arguments, wrong=operator.ne, msg='')

    dispatch_str = '(%s,)' % ', '.join(dispatch_args)

    def check(arguments, wrong=operator.ne, msg=''):
        """Make sure one passes the expected number of arguments"""
        if wrong(len(arguments), len(dispatch_args)):
            raise TypeError('Expected %d arguments, got %d%s' %
                            (len(dispatch_args), len(arguments), msg))

    def gen_func_dec(func):
        """Decorator turning a function into a generic function"""