Question:

Given the following Python code, improve the code by doing the following:

Include docstring and necessary comments in the code for proper code documentation

Implement setter$-$getter functions, for all attributes.

Implement a deposit$()$ function that would add an amount to the account. Ensure that the amount is always a positive value greater than $0.$

Create objects and test the code in the cell given below.

class BankAccount:

def $\_\_$init$\_\_($self$,$number,balance,currency$)$:

$$ self.$\_\_$number$=$number

$$self$.\_\_$balance$=$balance

$$ self.$\_\_$currency$=$currency

def withdraw$($self$,$funds$)$:

$$ if funds $<=$ self.$\_\_$balance:

$$ self.$\_\_$balance $-=$ funds

$$ return True

$$ return False #insufficient funds