Reads the verification state out of a session's Config JSON. Tolerant by design: a missing,
malformed or partial value yields an empty / partial state rather than an exception, because a
garbled state must never be the reason a session cannot be addressed.
Reads the verification state out of a session's
ConfigJSON. Tolerant by design: a missing, malformed or partial value yields an empty / partial state rather than an exception, because a garbled state must never be the reason a session cannot be addressed.