Account Balance

await mpesa.accountBalance.query({
  partyA: 600999,
  resultUrl: 'https://example.com/payments/balance/result',
  queueTimeoutUrl: 'https://example.com/payments/balance/timeout',
});

Takes partyA (PartyA), an optional identifierType (IdentifierType), resultUrl (ResultURL), queueTimeoutUrl (QueueTimeOutURL) and optional remarks (Remarks, up to 100 characters, defaults to "Account balance"). The balances arrive at resultUrl as one packed string; split it with parseBalances.