Result of a single Liveness session run on-device. The reference image,
confidence score, and audit images are not returned through this channel —
the consuming app’s backend retrieves them via GetFaceLivenessSessionResults
using the same sessionId.
Short-lived AWS credentials minted by the consuming app’s backend (e.g. via
STS:AssumeRole against a role with rekognition:StartFaceLivenessSession).
The plugin passes these straight through to the native Amplify SDK.
Optional UI-text overrides applied to the Amplify Liveness UI on this
session only. Useful when the operator-handed-the-device wording (“Center
your face”) doesn’t match the third-party-being-scanned context (e.g.
rear-camera gate verification — the camera doesn’t face the user holding
the phone, it faces a driver).