docs: public GetBuiltinIntentResult withSlots(BuiltinIntentSlot... slots) {
          if (this.slots == null) {
              setSlots(new java.util.ArrayList<BuiltinIntentSlot>(slots.length));
          }
          for (BuiltinIntentSlot ele : slots) {
              this.slots.add(ele);
          }
          return this;
      }