Hello Dipanjan,
I just want to congratulate you for your book. It is one of the best out there.
Altough, I have a small issue:

on chapter 11 at Sequence Modeling when I call get_seq_train_test function I get an error
on this line: scaled_stock_series = scaler.fit_transform(time_series)

saying : ValueError: Expected 2D array, got 1D array instead: array=[1115.099976 1115.099976 1115.099976 ... 2711.929932 2643.689941
2634.800049].
Reshape your data either using array.reshape(-1, 1) if your data has a single feature or array.reshape(1, -1) if it contains a single sample.

Can you help me with this?
Thanks