@java.lang.Override
    public Builder clone() {
      return super.clone();
    }
<pre>
A vertex represents a 2D point in the image.
NOTE: the normalized vertex coordinates are relative to the original image
and range from 0 to 1.
</pre>

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