public Builder mergeProperty(com.google.cloud.vision.v1.TextAnnotation.TextProperty value) {
      if (propertyBuilder_ == null) {
        if (((bitField0_ & 0x00000001) != 0)
            && property_ != null
            && property_
                != com.google.cloud.vision.v1.TextAnnotation.TextProperty.getDefaultInstance()) {
          getPropertyBuilder().mergeFrom(value);
        } else {
          property_ = value;
        }
      } else {
        propertyBuilder_.mergeFrom(value);
      }
      if (property_ != null) {
        bitField0_ |= 0x00000001;
        onChanged();
      }
      return this;
    }
<pre>
Additional information detected for the word.
</pre>

<code>.google.cloud.vision.v1.TextAnnotation.TextProperty property = 1;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/Word.java