Write a Python program that simulates a simple banking system. The program should have the following functionalities:

$1.$ Account Creation:

a$.$ Allow users to create a new bank account.

b$.$ Prompt the user to enter their name and initial deposit amount.

c$.$ Generate a unique $7$ digit account number for each new account.

d$.$ Store account details $($name$,$ account number, balance$)$ in a data structure.

$2.$ Deposit and Withdrawal:

a$.$ Implement functions for deposit and withdrawal.

b$.$ Allow users to deposit money into their account and update the balance.

c$.$ Ensure that withdrawals are only allowed if the account has sufficient balance.

d$.$ Display appropriate messages for successful transactions or insufficient balance.

$3.$ Account Information:

a$.$ Implement a function to display account information.

b$.$ Allow users to input their account number and view their account details, including name and current balance.

$4.$ Transaction History:

a$.$ Keep track of transaction history for each account.

b$.$ Display the transaction history upon user request.

c$.$ Include details such as date, type of transaction $($deposit or withdrawal$),$ and amount.

d$.$ Display withdrawals above specific amount.

e$.$ Display subset of transactions by their transaction index. For instance, display the history between $2$nd and $4$th transaction.

$5.$ Error Handling:

a$.$ Implement appropriate error handling mechanisms.

b$.$ Ensure that the program does not crash due to invalid inputs.

c$.$ Display helpful error messaclass

BankAccount:

def $\_\_$init$\_\_($self$,$ name, initial$\_$deposit$)$:

pass

def generate$\_$account$\_$number$($self$)$:

pass

def deposit$($self$,$ amount$)$:

pass

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

pass

def display$\_$account$\_$info$($self$)$:

pass

def display$\_$withdrawals$\_$above$($self$,$ amount$)$:

pass

def display$\_$transctions$\_$by$\_$index$($self$,$ start$\_$index, end$\_$index$)$:

passges for users.

holding class for all bank accounts

class Bank:

def $\_\_$init$\_\_($self$,$ name$)$:

pass

def add$\_$account$($self$,$ account$)$:

pass

def find$\_$account$($self$,$ account$\_$number$)$:

pass

show the output