public Builder setPanAngle(float value) {

      panAngle_ = value;
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }
<pre>
Yaw angle, which indicates the leftward/rightward angle that the face is
pointing relative to the vertical plane perpendicular to the image. Range
[-180,180].
</pre>

<code>float pan_angle = 5;</code>

@param value The panAngle to set.
@return This builder for chaining.
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/FaceAnnotation.java