private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vision.v1p4beta1.ImageContext,
            com.google.cloud.vision.v1p4beta1.ImageContext.Builder,
            com.google.cloud.vision.v1p4beta1.ImageContextOrBuilder>
        getImageContextFieldBuilder() {
      if (imageContextBuilder_ == null) {
        imageContextBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vision.v1p4beta1.ImageContext,
                com.google.cloud.vision.v1p4beta1.ImageContext.Builder,
                com.google.cloud.vision.v1p4beta1.ImageContextOrBuilder>(
                getImageContext(), getParentForChildren(), isClean());
        imageContext_ = null;
      }
      return imageContextBuilder_;
    }
<pre>
Additional context that may accompany the image(s) in the file.
</pre>

<code>.google.cloud.vision.v1p4beta1.ImageContext image_context = 3;</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/AsyncAnnotateFileRequest.java