need help with get actions 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$\}")$

def copy$($self$)$:

new$\_$node $=$ Nim$($self$.$piles, self.stones, self.limit$)$

new$\_$node.winner $=$ self.winner

new$\_$node.turns $=$ self.turns

new$\_$node.cur$\_$player $=$ self.cur$\_$player

new$\_$node.board $=$ self.board.copy$()$

return new$\_$node

Get Actions Method

The Nim class should have a get$\_$actions$()$ method that can be used to determine the actions available to

the current player. The header for get$\_$actions$()$ is shown below.

def get$\_$actions$($self$)$:

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

called.

The method should perform the following tasks:

$1.$ Create an empty list named actions.

$2.$ Loop over each pile in the game board. For each pile, the loop should do the following:

A$.$ Determine the maximum number of stones that can be taken from the pile. This will be equal to

either the limit attribute, or the number of stones currently in the pile, whichever is smaller. For

the sake of discussion, let's call the maximum number of stones for a certain pile max$\_$stones.

B$.$ Add several action tuples to the action list. These tuples should be of the form:

$($pile$\_$index, $1),($pile$\_$index, $2),...,($pile$\_$index, max$\_$stones$)$

$3.$ Return the actions list.

As an example, suppose that the current board state for a Nim game is $[2,5,1],$ and that the limit for the

game is equal to $3.$ Then the get$\_$actions$()$ method should return the following list:

$[(0,1),(0,2),(1,1),(1,2),(1,3),(2,1)]$

need to run the error check below:

nim $=$ Nim$($piles$=2,$ stones$=5,$ limit$=3)$

assert$($set$($nim$.$get$\_$actions$())==$ set$([(0,1),(0,2),(0,3),(1,1),(1,2),(1,3)]))$

nim $=$ Nim$($piles$=2,$ stones$=5,$ limit$=3)$

nim.board$[1]-=3$

assert$($set$($nim$.$get$\_$actions$())==$ set$([(0,1),(0,2),(0,3),(1,1),(1,2)]))$

nim $=$ Nim$($piles$=3,$ stones$=5,$ limit$=3)$

nim.board$[0]-=5$

nim.board$[2]-=4$

nim.get$\_$actions$()$

assert$($set$($nim$.$get$\_$actions$())==$ set$([(1,1),(1,2),(1,3),(2,1)]))$

print$(\text{'}$All tests passed!$\text{'})$