customerCredentialsChanged example

    }

    public function onCustomerWritten(EntityWrittenEvent $event): void
    {
        foreach ($event->getWriteResults() as $writeResult) {
            if ($writeResult->getOperation() !== EntityWriteResult::OPERATION_UPDATE) {
                continue;
            }

            $payload = $writeResult->getPayload();
            if (!$this->customerCredentialsChanged($payload)) {
                continue;
            }

            $customerId = $payload['id'];
            $newToken = $this->invalidateUsingSession($customerId);

            if ($newToken) {
                $this->contextPersister->revokeAllCustomerTokens($customerId, $newToken);
            } else {
                $this->contextPersister->revokeAllCustomerTokens($customerId);
            }
        }