@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      if (activeZoneBuilder_ != null) {
        activeZoneBuilder_.clear();
      }
      if (crossingLineBuilder_ != null) {
        crossingLineBuilder_.clear();
      }
      id_ = "";
      displayName_ = "";
      sourceStream_ = "";
      type_ = 0;
      annotationPayloadCase_ = 0;
      annotationPayload_ = null;
      return this;
    }
<pre>
message about annotations about Vision AI stream resource.
</pre>

Protobuf type {@code google.cloud.visionai.v1.StreamAnnotation}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/StreamAnnotation.java