private com.google.protobuf.SingleFieldBuilderV3<
            com.google.type.LatLng, com.google.type.LatLng.Builder, com.google.type.LatLngOrBuilder>
        getMinLatLngFieldBuilder() {
      if (minLatLngBuilder_ == null) {
        minLatLngBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.type.LatLng,
                com.google.type.LatLng.Builder,
                com.google.type.LatLngOrBuilder>(getMinLatLng(), getParentForChildren(), isClean());
        minLatLng_ = null;
      }
      return minLatLngBuilder_;
    }
<pre>
Min lat/long pair.
</pre>

<code>.google.type.LatLng min_lat_lng = 1;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/LatLongRect.java