realbook/layers/compatibility.py [141:148]:
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    if isinstance(saved_model_or_path, str):
        savedmodel = tf.saved_model.load(saved_model_or_path)
        model = savedmodel.signatures["serving_default"]
        model._backref = savedmodel  # Without this, the SavedModel will be GC'd too early
    else:
        model = saved_model_or_path
    if hasattr(model, "signatures"):
        model = model.signatures["serving_default"]
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realbook/layers/compatibility.py [343:350]:
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    if isinstance(saved_model_or_path, str):
        savedmodel = tf.saved_model.load(saved_model_or_path)
        model = savedmodel.signatures["serving_default"]
        model._backref = savedmodel  # Without this, the SavedModel will be GC'd too early
    else:
        model = saved_model_or_path
    if hasattr(model, "signatures"):
        model = model.signatures["serving_default"]
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