pymc.gp.cov.WhiteNoise cannot be added to pymc.gp.cov.ExpQuad

[PPatty666]

I am learning Chapter 7 of Bayesian Analysis with Python and was trying to use pymc5 to reproduce some modeling examples.

In the examples where pymc.gp.cov.WhiteNoise was added to instantiate a covariance function, it gave me an error message saying "'WhiteNoise' object has no attribute 'input_dim'".

Attached is the printed code with the error message.

Could you please suggest some solutions?

Thank you very much!

white_noise_add_issue.pdf