docs: public DescribeSpotPriceHistoryRequest withProductDescriptions(String... productDescriptions) {
          if (this.productDescriptions == null) {
              setProductDescriptions(new com.amazonaws.internal.SdkInternalList<String>(productDescriptions.length));
          }
          for (String ele : productDescriptions) {
              this.productDescriptions.add(ele);
          }
          return this;
      }