Load the google bert model(ckpt) from TFBertForPreTraining error
I want use the google chinese bert ckpt model in transforms, and env use tf2.
the transforms can load the ckpt  into pytorch model
But I want load the ckpt into tf.keras model, How can I do this ?


![image](https://user-images.githubusercontent.com/12653212/71570221-ce5d9f00-2b0e-11ea-8595-7b8b22db87f2.png)

model = BertForPreTraining.from_pretrained(checkpoint_path, from_tf=True, config=config)

Success.


But:
![image](https://user-images.githubusercontent.com/12653212/71570227-f0572180-2b0e-11ea-9978-f9c679a3e37b.png)

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