When will SavedModel support be added?

[playground]

Hi, will support for SavedModel be added soon? The reason I'm asking is that I tried loading SavedModel with tfjs-node and running into some issues.

I'm running node v15.7.0, tfjs-node v3.6.1 on Mac Big Sur. I've trained a custom model and trying to load saved model as follow but is getting the following errors. Any idea?

  const image = fs.readFileSync(imagePath);
  const decodedImage = tfnode.node.decodeImage(new Uint8Array(image), 3);
  const model = await tfnode.node.loadSavedModel(modelPath);
  const predictions = model.predict(decodedImage);

2021-05-31 18:58:58.942711: I tensorflow/cc/saved_model/reader.cc:32] Reading SavedModel from: saved_model
2021-05-31 18:58:59.291324: I tensorflow/cc/saved_model/reader.cc:55] Reading meta graph with tags { serve }
2021-05-31 18:58:59.291368: I tensorflow/cc/saved_model/reader.cc:93] Reading SavedModel debug info (if present) from: saved_model
2021-05-31 18:59:00.692648: I tensorflow/cc/saved_model/loader.cc:206] Restoring SavedModel bundle.
2021-05-31 18:59:03.160455: I tensorflow/cc/saved_model/loader.cc:190] Running initialization op on SavedModel bundle at path: saved_model
2021-05-31 18:59:04.360189: I tensorflow/cc/saved_model/loader.cc:277] SavedModel load for tags { serve }; Status: success: OK. Took 5417477 microseconds.
2021-05-31 18:59:12.511652: E tensorflow/core/framework/tensor.cc:555] Could not decode variant with type_name: "tensorflow::TensorList".  Perhaps you forgot to register a decoder via REGISTER_UNARY_VARIANT_DECODE_FUNCTION?
2021-05-31 18:59:12.511706: W tensorflow/core/framework/op_kernel.cc:1740] OP_REQUIRES failed at constant_op.cc:79 : Invalid argument: Cannot parse tensor from tensor_proto.
2021-05-31 18:59:12.546008: E tensorflow/core/framework/tensor.cc:555] Could not decode variant with type_name: "tensorflow::TensorList".  Perhaps you forgot to register a decoder via REGISTER_UNARY_VARIANT_DECODE_FUNCTION?
2021-05-31 18:59:12.546526: W tensorflow/core/framework/op_kernel.cc:1740] OP_REQUIRES failed at constant_op.cc:79 : Invalid argument: Cannot parse tensor from proto: dtype: DT_VARIANT
tensor_shape {
}
variant_val {
  type_name: "tensorflow::TensorList"
  metadata: "\001\000\001\377\377\377\377\377\377\377\377\377\001\030\001"
}

/test-saved-model/node_modules/@tensorflow/tfjs-node/dist/nodejs_kernel_backend.js:449
        var outputMetadata = this.binding.runSavedModel(id, this.getMappedInputTensorIds(inputs, inputTensorInfos), inputTensorInfos.map(function (info) { return info.name; }).join(','), outputOpNames.join(','));
                                          ^

Error: Session fail to run with error: Cannot parse tensor from proto: dtype: DT_VARIANT
tensor_shape {
}
variant_val {
  type_name: "tensorflow::TensorList"
  metadata: "\001\000\001\377\377\377\377\377\377\377\377\377\001\030\001"
}```