public Builder mergeFrom(com.google.cloud.vision.v1.ProductSearchResults other) {
      if (other == com.google.cloud.vision.v1.ProductSearchResults.getDefaultInstance())
        return this;
      if (other.hasIndexTime()) {
        mergeIndexTime(other.getIndexTime());
      }
      if (resultsBuilder_ == null) {
        if (!other.results_.isEmpty()) {
          if (results_.isEmpty()) {
            results_ = other.results_;
            bitField0_ = (bitField0_ & ~0x00000002);
          } else {
            ensureResultsIsMutable();
            results_.addAll(other.results_);
          }
          onChanged();
        }
      } else {
        if (!other.results_.isEmpty()) {
          if (resultsBuilder_.isEmpty()) {
            resultsBuilder_.dispose();
            resultsBuilder_ = null;
            results_ = other.results_;
            bitField0_ = (bitField0_ & ~0x00000002);
            resultsBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getResultsFieldBuilder()
                    : null;
          } else {
            resultsBuilder_.addAllMessages(other.results_);
          }
        }
      }
      if (productGroupedResultsBuilder_ == null) {
        if (!other.productGroupedResults_.isEmpty()) {
          if (productGroupedResults_.isEmpty()) {
            productGroupedResults_ = other.productGroupedResults_;
            bitField0_ = (bitField0_ & ~0x00000004);
          } else {
            ensureProductGroupedResultsIsMutable();
            productGroupedResults_.addAll(other.productGroupedResults_);
          }
          onChanged();
        }
      } else {
        if (!other.productGroupedResults_.isEmpty()) {
          if (productGroupedResultsBuilder_.isEmpty()) {
            productGroupedResultsBuilder_.dispose();
            productGroupedResultsBuilder_ = null;
            productGroupedResults_ = other.productGroupedResults_;
            bitField0_ = (bitField0_ & ~0x00000004);
            productGroupedResultsBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getProductGroupedResultsFieldBuilder()
                    : null;
          } else {
            productGroupedResultsBuilder_.addAllMessages(other.productGroupedResults_);
          }
        }
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
Results for a product search request.
</pre>

Protobuf type {@code google.cloud.vision.v1.ProductSearchResults}
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/ProductSearchResults.java