@java.lang.Override
  public boolean hasContext() {
    return ((bitField0_ & 0x00000040) != 0);
  }
<pre>
If present, contextual information is needed to understand where this image
comes from.
</pre>

<code>.google.cloud.vision.v1p2beta1.ImageAnnotationContext context = 21;</code>

@return Whether the context field is set.
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/AnnotateImageResponse.java