private void ensureBboxesIsMutable() {
      if (!((bitField0_ & 0x00000008) != 0)) {
        bboxes_ = new java.util.ArrayList<com.google.protobuf.ListValue>(bboxes_);
        bitField0_ |= 0x00000008;
      }
    }
<pre>
The Model's confidences in correctness of the predicted IDs, higher value
means higher confidence. Order matches the Ids.
</pre>

<code>repeated float confidences = 3;</code>

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