public com.google.protobuf.ByteString getDisplayNamesBytes(int index) {
      return displayNames_.getByteString(index);
    }
<pre>
The display names of the AnnotationSpecs that had been identified, order
matches the IDs.
</pre>

<code>repeated string display_names = 2;</code>

@param index The index of the value to return.
@return The bytes of the displayNames at the given index.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ImageObjectDetectionPredictionResult.java