public Builder clearAnnotation() {
          bitField0_ = (bitField0_ & ~0x00000001);
          annotation_ = null;
          if (annotationBuilder_ != null) {
            annotationBuilder_.dispose();
            annotationBuilder_ = null;
          }
          onChanged();
          return this;
        }
<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