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Title: beware: the code in the book is not open source
Review: The authors make the code available, but it's not free. That is, you can't take the code and use it in your project, unless you get a license from them.This was a big deal for me, which is why I'm giving it a one star review.If the code was freely available, I'd probably give it 3-4 stars. I found the content frustratingly hard to decipher.
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