need help with Python copy method:

my current code:

import numpy as np

class Nim:

def $\_\_$init$\_\_($self$,$ piles, stones, limit$)$:

self.piles $=$ piles

self.stones $=$ stones

self.limit $=$ limit

self.winner $=$ None

self.turns $=0$

self.cur$\_$player $=1$

self.board $=[$stones$]*$ piles

def display$($self$)$:

print$($f$"$Current Turn: $\{$self$.$turns$\}$

Current Player: $\{$self$.$cur$\_$player$\}$

Piles: $\{$self$.$board$\}")$

Copy Method

The Nim class should have a copy$()$ method. This method is used by the search agents to create child notes

when constructing a game tree. The header for copy$()$ is shown below.

def copy$($self$)$:

This method has only one parameter, self, which refers to the instance of Nim that is being copied.

The method should perform the following tasks:

$1.$ Create a new instance of Nim, naming it new$\_$node $($or something similar$).$ When creating the new

instance, the piles, stones, and limit parameters for self should be passed to the constructor so

that the same values are used for new$\_$node.

$2.$ Overwrite the winner, turns, and cur$\_$player attributes of new$\_$node with the corresponding values

from self.

$3.$ Overwrite the board attribute of new$\_$node with a copy of the same attribute from self. Be sure to

use the copy$()$ method of the list to create a new copy of the list, as opposed to simply creating a

reference to the old list.

$4.$ Return new$\_$node.