code: @WithBridgeMethods(value = SQLUpdateClause.class, castRequired = true)
      public C addBatch() {
          batches.add(new SQLUpdateBatch(metadata, updates));
          updates = Maps.newLinkedHashMap();
          metadata = new DefaultQueryMetadata();
          metadata.addJoin(JoinType.DEFAULT, entity);
          return (C) this;
      }
docs: Add the current state of bindings as a batch item
  
  @return the current object