private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vision.v1.ImageContext,
            com.google.cloud.vision.v1.ImageContext.Builder,
            com.google.cloud.vision.v1.ImageContextOrBuilder>
        getImageContextFieldBuilder() {
      if (imageContextBuilder_ == null) {
        imageContextBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vision.v1.ImageContext,
                com.google.cloud.vision.v1.ImageContext.Builder,
                com.google.cloud.vision.v1.ImageContextOrBuilder>(
                getImageContext(), getParentForChildren(), isClean());
        imageContext_ = null;
      }
      return imageContextBuilder_;
    }
<pre>
Additional context that may accompany the image.
</pre>

<code>.google.cloud.vision.v1.ImageContext image_context = 3;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/AnnotateImageRequest.java