alt_value should not be a kw-only arg
@@ -195,7 +195,7 @@ class AtomicOp(BuiltinFunc):
"""
self.__doc__ = doc
- def __call__(self, array, index, value, *, alt_value=None):
+ def __call__(self, array, index, value, alt_value=None):
super().__call__()
def call(self, env, array, index, value, value2=None):
