code: def test_serialize(serialize_test, hyperparameters):
      serialize_test(
          TemporalFusionTransformerEstimator, hyperparameters
      )
  
file_path: gluonts/test/mx/model/tft/test_model.py
imports: import pytest
  from gluonts.model.forecast import QuantileForecast
  from gluonts.mx.model.predictor import GluonPredictor
  from gluonts.mx import TemporalFusionTransformerEstimator
  from gluonts.mx.model.tft._network import TemporalFusionTransformerPredictionNetwork
label_desc: Use image node_id 3 for calling a global function with example usage: test_serialize(serialize_test, hyperparameters) without return types