private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.videointelligence.v1.DetectedLandmark,
            com.google.cloud.videointelligence.v1.DetectedLandmark.Builder,
            com.google.cloud.videointelligence.v1.DetectedLandmarkOrBuilder>
        getLandmarksFieldBuilder() {
      if (landmarksBuilder_ == null) {
        landmarksBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.videointelligence.v1.DetectedLandmark,
                com.google.cloud.videointelligence.v1.DetectedLandmark.Builder,
                com.google.cloud.videointelligence.v1.DetectedLandmarkOrBuilder>(
                landmarks_, ((bitField0_ & 0x00000008) != 0), getParentForChildren(), isClean());
        landmarks_ = null;
      }
      return landmarksBuilder_;
    }
<pre>
Optional. The detected landmarks.
</pre>

<code>
repeated .google.cloud.videointelligence.v1.DetectedLandmark landmarks = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/TimestampedObject.java