The observed variable in the Model Builder class appears to be instantiated twice. (pymc-extras)

While following the Model Builder example from the official PyMC website (Using ModelBuilder class for deploying PyMC models — PyMC example gallery), I noticed that after sampling the model, the observed variable(y) appears to be initialized twice(screenshot).Also Example notebook linked in the documentation.

Although this doesn’t raise any errors, it seems unusual—especially since PyMC typically doesn’t allow multiple variables with the same name.