private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.vision.v1p2beta1.Vertex,
            com.google.cloud.vision.v1p2beta1.Vertex.Builder,
            com.google.cloud.vision.v1p2beta1.VertexOrBuilder>
        getVerticesFieldBuilder() {
      if (verticesBuilder_ == null) {
        verticesBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.vision.v1p2beta1.Vertex,
                com.google.cloud.vision.v1p2beta1.Vertex.Builder,
                com.google.cloud.vision.v1p2beta1.VertexOrBuilder>(
                vertices_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
        vertices_ = null;
      }
      return verticesBuilder_;
    }
<pre>
The bounding polygon vertices.
</pre>

<code>repeated .google.cloud.vision.v1p2beta1.Vertex vertices = 1;</code>
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/BoundingPoly.java