def getNumAccounts$($self$)$:

$\text{'}\text{'}\text{'}$

getNumAccounts $-$ returns the number of accounts in the portfolio

enter your code below

$\text{'}\text{'}\text{'}$

return len$($self$.$accounts$)$

def getTotalBalance$($self$)$:

$\text{'}\text{'}1$

getNumAccounts $-$ returns the number of accounts in the poartfolio

enter your code below $-$ the balances code may help

$\text{'}\text{'}\text{'}$

total$\_$balance $=0$

for account in self.accounts:

total$\_$balance $+=$ account.getBalance$()$

return total$\_$b$$alance

what does this code do