@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(url_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, url_);
      }
      if (java.lang.Float.floatToRawIntBits(score_) != 0) {
        output.writeFloat(2, score_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageTitle_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageTitle_);
      }
      for (int i = 0; i < fullMatchingImages_.size(); i++) {
        output.writeMessage(4, fullMatchingImages_.get(i));
      }
      for (int i = 0; i < partialMatchingImages_.size(); i++) {
        output.writeMessage(5, partialMatchingImages_.get(i));
      }
      getUnknownFields().writeTo(output);
    }
<pre>
Partial matching images on the page.
Those images are similar enough to share some key-point features. For
example an original image will likely have partial matching for its
crops.
</pre>

<code>
repeated .google.cloud.vision.v1p2beta1.WebDetection.WebImage partial_matching_images = 5;
</code>
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/WebDetection.java