trange is not defined in exercise 13 of chapter 12

I'm trying to run the implementation provided for exercise 13 in chapter 12 and I get this error

Can you tell me please where is trange defined?
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NameError Traceback (most recent call last)
in ()
----> 1 with trange(1, n_epochs + 1, desc="All epochs") as epochs:
2 for epoch in epochs:
3 with trange(1, n_steps + 1, desc="Epoch {}/{}".format(epoch, n_epochs)) as steps:
4 for step in steps:
5 X_batch, y_batch = random_batch(X_train, y_train)

NameError: name 'trange' is not defined