private void ensurePositiveDirectionCountsIsMutable() {
          if (!((bitField0_ & 0x00000002) != 0)) {
            positiveDirectionCounts_ =
                new java.util.ArrayList<
                    com.google.cloud.visionai.v1.OccupancyCountingPredictionResult.Stats
                        .ObjectCount>(positiveDirectionCounts_);
            bitField0_ |= 0x00000002;
          }
        }
<pre>
Line annotation from the user.
</pre>

<code>.google.cloud.visionai.v1.StreamAnnotation annotation = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OccupancyCountingPredictionResult.java