public Builder clearPosition() {
        bitField0_ = (bitField0_ & ~0x00000002);
        position_ = null;
        if (positionBuilder_ != null) {
          positionBuilder_.dispose();
          positionBuilder_ = null;
        }
        onChanged();
        return this;
      }
<pre>
Face landmark position.
</pre>

<code>.google.cloud.vision.v1p3beta1.Position position = 4;</code>
java-vision/proto-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/FaceAnnotation.java