Callback error from train_mnist function

I seem to be getting an attribute error: “myCallback” object has no attribute ‘set_model’ from the below code:

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Did you manage to fix it? I have the same problem

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Here’s my callback and train_mnist function. My issue was I wasn’t inheriting from the correct class for tf.keras.callback.Callback

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I am having the same problem . please tell me how to fix it.

Does your callback inherit from tf.keras.callbacks.Callback ?