Export to tflite model

[AnhPC03]

Hello @idealo-ricardo-band @idealoprovisioning
I very appreciate your awesome work. And I'm trying to convert RRDN hdf5 model to tflite in order to integrate it to android project.
But when I was exporting, I got the error

File "/home/lib/python3.8/site-packages/tensorflow/lite/python/lite.py", line 1287, in _freeze_keras_model
    if not isinstance(self._keras_model.call, _def_function.Function):
AttributeError: 'RRDN' object has no attribute 'call'

Could you give me some advice? Thank you