public Builder mergeLatLng(com.google.type.LatLng value) {
      if (latLngBuilder_ == null) {
        if (((bitField0_ & 0x00000001) != 0)
            && latLng_ != null
            && latLng_ != com.google.type.LatLng.getDefaultInstance()) {
          getLatLngBuilder().mergeFrom(value);
        } else {
          latLng_ = value;
        }
      } else {
        latLngBuilder_.mergeFrom(value);
      }
      if (latLng_ != null) {
        bitField0_ |= 0x00000001;
        onChanged();
      }
      return this;
    }
<pre>
lat/long location coordinates.
</pre>

<code>.google.type.LatLng lat_lng = 1;</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/LocationInfo.java