signingKeyFingerprintsSha256 property

Hex-encoded SHA-256 hash of the signing certificate of the extension app.

Only hexadecimal string representations of 64 characters are valid.If not specified, the signature for the corresponding package name is obtained from the Play Store instead.If this list is empty, the signature of the extension app on the device must match the signature obtained from the Play Store for the app to be able to communicate with Android Device Policy.If this list is not empty, the signature of the extension app on the device must match one of the entries in this list for the app to be able to communicate with Android Device Policy.In production use cases, it is recommended to leave this empty.