private void buildPartial0(com.google.cloud.vision.v1p3beta1.FaceAnnotation result) {
      int from_bitField0_ = bitField0_;
      int to_bitField0_ = 0;
      if (((from_bitField0_ & 0x00000001) != 0)) {
        result.boundingPoly_ =
            boundingPolyBuilder_ == null ? boundingPoly_ : boundingPolyBuilder_.build();
        to_bitField0_ |= 0x00000001;
      }
      if (((from_bitField0_ & 0x00000002) != 0)) {
        result.fdBoundingPoly_ =
            fdBoundingPolyBuilder_ == null ? fdBoundingPoly_ : fdBoundingPolyBuilder_.build();
        to_bitField0_ |= 0x00000002;
      }
      if (((from_bitField0_ & 0x00000008) != 0)) {
        result.rollAngle_ = rollAngle_;
      }
      if (((from_bitField0_ & 0x00000010) != 0)) {
        result.panAngle_ = panAngle_;
      }
      if (((from_bitField0_ & 0x00000020) != 0)) {
        result.tiltAngle_ = tiltAngle_;
      }
      if (((from_bitField0_ & 0x00000040) != 0)) {
        result.detectionConfidence_ = detectionConfidence_;
      }
      if (((from_bitField0_ & 0x00000080) != 0)) {
        result.landmarkingConfidence_ = landmarkingConfidence_;
      }
      if (((from_bitField0_ & 0x00000100) != 0)) {
        result.joyLikelihood_ = joyLikelihood_;
      }
      if (((from_bitField0_ & 0x00000200) != 0)) {
        result.sorrowLikelihood_ = sorrowLikelihood_;
      }
      if (((from_bitField0_ & 0x00000400) != 0)) {
        result.angerLikelihood_ = angerLikelihood_;
      }
      if (((from_bitField0_ & 0x00000800) != 0)) {
        result.surpriseLikelihood_ = surpriseLikelihood_;
      }
      if (((from_bitField0_ & 0x00001000) != 0)) {
        result.underExposedLikelihood_ = underExposedLikelihood_;
      }
      if (((from_bitField0_ & 0x00002000) != 0)) {
        result.blurredLikelihood_ = blurredLikelihood_;
      }
      if (((from_bitField0_ & 0x00004000) != 0)) {
        result.headwearLikelihood_ = headwearLikelihood_;
      }
      result.bitField0_ |= to_bitField0_;
    }
<pre>
A face annotation object contains the results of face detection.
</pre>

Protobuf type {@code google.cloud.vision.v1p3beta1.FaceAnnotation}
java-vision/proto-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/FaceAnnotation.java