private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.videointelligence.v1.NormalizedVertex,
            com.google.cloud.videointelligence.v1.NormalizedVertex.Builder,
            com.google.cloud.videointelligence.v1.NormalizedVertexOrBuilder>
        getVerticesFieldBuilder() {
      if (verticesBuilder_ == null) {
        verticesBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.videointelligence.v1.NormalizedVertex,
                com.google.cloud.videointelligence.v1.NormalizedVertex.Builder,
                com.google.cloud.videointelligence.v1.NormalizedVertexOrBuilder>(
                vertices_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
        vertices_ = null;
      }
      return verticesBuilder_;
    }
<pre>
Normalized vertices of the bounding polygon.
</pre>

<code>repeated .google.cloud.videointelligence.v1.NormalizedVertex vertices = 1;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/NormalizedBoundingPoly.java