def test__copy(self):
f = FunctionSignature(lambda a, b: 2)
f2 = f.copy()
self.assertIsNot(f, f2)
self.assertIsNot(f._args, f2._args)
def test__copy(self):
f = FunctionSignature(lambda a, b: 2)
f2 = f.copy()
self.assertIsNot(f, f2)
self.assertIsNot(f._args, f2._args)
