- :param node: The node we fill reduction axes for.
- :param reduction_axes: The collection of indices of axes to reduce. May be None.
- :return: Set filled with indices of axes we want to reduce.
+ @param node: The node we fill reduction axes for.
+ @param reduction_axes: The collection of indices of axes to reduce. May be None.
+ @return Set filled with indices of axes we want to reduce.