derivedContextsOf

The contexts of the commands the saga subscription of context derives or calls, as its Manifest declares them (SubscriptionManifest.derives and SubscriptionManifest.calls): each command's own context, a schema reference resolved through the Manifest of the context that decides it (commandTypeOf). Null when the subscription declares no derives, or when one of them cannot be resolved: a wait chain after its hop is then not checked.