Plotting posterior predictions from new data - shape mismatch

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3

If I add the pm.set_data line, then I get the following error:

TypeError: The variable `actor` must be a `SharedVariable` (created through `pm.MutableData()` or `pm.Data(mutable=True)`) to allow updating. The current type is: <class 'pytensor.tensor.var.TensorConstant'>

Not sure what to run pm.Data(mutable=True) on.