public Builder mergeImageContext(com.google.cloud.vision.v1p2beta1.ImageContext value) {
      if (imageContextBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && imageContext_ != null
            && imageContext_
                != com.google.cloud.vision.v1p2beta1.ImageContext.getDefaultInstance()) {
          getImageContextBuilder().mergeFrom(value);
        } else {
          imageContext_ = value;
        }
      } else {
        imageContextBuilder_.mergeFrom(value);
      }
      if (imageContext_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Additional context that may accompany the image(s) in the file.
</pre>

<code>.google.cloud.vision.v1p2beta1.ImageContext image_context = 3;</code>
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/AsyncAnnotateFileRequest.java