public Builder setNormalizedVertices(
        int index, com.google.cloud.vision.v1.NormalizedVertex value) {
      if (normalizedVerticesBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureNormalizedVerticesIsMutable();
        normalizedVertices_.set(index, value);
        onChanged();
      } else {
        normalizedVerticesBuilder_.setMessage(index, value);
      }
      return this;
    }
<pre>
The bounding polygon normalized vertices.
</pre>

<code>repeated .google.cloud.vision.v1.NormalizedVertex normalized_vertices = 2;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/BoundingPoly.java