Feature
In rustPython's array pickling, reduce is used.
However, reduce_ex is used in cPython's pickle.
I think we should implement reduce_ex in the array and use reduce_ex for picking.
Execution Result
There is no related python documentation, so I will attach the execution result.

Feature
In rustPython's array pickling,
reduceis used.However,
reduce_exis used in cPython's pickle.I think we should implement
reduce_exin the array and usereduce_exfor picking.Execution Result
There is no related python documentation, so I will attach the execution result.
