Usage: account.events.on('confirmed_balance_changed', fn)
Description: Wallet-lib, when finished to perform it's internal tasks (blockheight, SPV, utxos sync...), will throw this event. Important: Standardization on event might happen soon, to avoid breaking change, use the EVENTS constant as described below.

Example:

const {EVENTS} = require('@dashevo/wallet-lib');
const onConfirmedBalanceChange = ()=>{
  console.log('Balance changed');
}
account.events.on(EVENTS.CONFIRMED_BALANCE_CHANGED, onConfirmedBalanceChange);