code: private void updateRuntimeStatus() {
  
      final RuntimeStatusEventImpl.Builder builder = RuntimeStatusEventImpl.newBuilder()
          .setName(RUNTIME_NAME)
          .setState(State.RUNNING)
          .setOutstandingContainerRequests(this.containerRequestCounter.get());
  
      for (final String allocatedContainerId : this.containers.getContainerIds()) {
        builder.addContainerAllocation(allocatedContainerId);
      }
  
      this.reefEventHandlers.onRuntimeStatus(builder.build());
    }
docs: Update the driver with my current status.