public Builder setBoundingPoly(
        com.google.cloud.vision.v1p3beta1.BoundingPoly.Builder builderForValue) {
      if (boundingPolyBuilder_ == null) {
        boundingPoly_ = builderForValue.build();
      } else {
        boundingPolyBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
The bounding polygon around the face. The coordinates of the bounding box
are in the original image's scale, as returned in `ImageParams`.
The bounding box is computed to "frame" the face in accordance with human
expectations. It is based on the landmarker results.
Note that one or more x and/or y coordinates may not be generated in the
`BoundingPoly` (the polygon will be unbounded) if only a partial face
appears in the image to be annotated.
</pre>

<code>.google.cloud.vision.v1p3beta1.BoundingPoly bounding_poly = 1;</code>
java-vision/proto-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/FaceAnnotation.java