The SDK's numeric RetryMode enum (re-exported by @azure/service-bus).
The public ServiceBusRetryOptions.mode string is translated through
this before reaching the SDK — @azure/core-amqp compares the value
with === against its enum, so an untranslated string silently
behaves as the SDK default (Fixed).
Usage
import { type ServiceBusSdkModule } from "messaging-plugin/src/index.ts";