code: function describeBatch(batch, context) {
    const b = batch || context.batch;
    return `batch (${b && b.shardOrEventID})`;
    // return b ? `batch (${b.shardOrEventID})${messages ? ` (${b.describeContents()})` : ''}` : '';
  }
docs: ===================================================================================================================== Task describeItem implementations =====================================================================================================================