Where to find "invariant.detectors" ?

[ole2412]

Hi,
thank you for the work towards secure AI interactions.
Where to find invariant.detectors? The module does not seem to exist (anymore?). How can we run the detector nowadays?

In detail:
The example from https://invariantlabs.ai/blog/guardrails

from invariant.detectors import pii

raise "Found PII in message" if:
    (msg: Message)
    any(pii(msg))

leads to ModuleNotFoundError: No module named 'invariant.detectors'

Thank you,
Ole