private void ensureDisplayNamesIsMutable() {
      if (!displayNames_.isModifiable()) {
        displayNames_ = new com.google.protobuf.LazyStringArrayList(displayNames_);
      }
      bitField0_ |= 0x00000002;
    }
<pre>
The resource IDs of the AnnotationSpecs that had been identified.
</pre>

<code>repeated int64 ids = 1;</code>

@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ClassificationPredictionResult.java