public UnaryCallSettings.Builder<DeleteReferenceImageRequest, Empty>
        deleteReferenceImageSettings() {
      return getStubSettingsBuilder().deleteReferenceImageSettings();
    }
Returns the builder for the settings used for calls to deleteReferenceImage.
java-vision/google-cloud-vision/src/main/java/com/google/cloud/vision/v1p4beta1/ProductSearchSettings.java