playIntegrityToken property
Android only.
Used to assert application identity in place of a recaptcha token (and
safety_net_token). At least one of (ios_receipt and ios_secret),
recaptcha_token, , or play_integrity_token must be specified to verify
the verification code is being sent on behalf of a real app and not an
emulator. A Play Integrity Token can be generated via the
PlayIntegrity API
with applying SHA256 to the phone_number field as the nonce.
Implementation
core.String? playIntegrityToken;