cloudpickle can't pickle some Tensorflow 2 Objects

I have tried to pickle some objects of Tensorflow 2.0.0 using cloudpickle I get exception.

1. First, I have tried to pickle the Conv2D class (as described in https://www.tensorflow.org/api_docs/python/tf/keras/layers/Conv2D). I got the exception "TypeError: can't pickle _thread._local objects"

2. Afterwards, I also tried to pickle a class inheriting from the Model class of tensorflow.Keras in which had an instance variable of the type tf.keras.optimizers.Adam. In this case, I got an exception: "TypeError: can't pickle _LazyLoader objects".

Is there an issue with pickling Tensorflow 2 objects using cloudpickle? is it supported?