start
open fun startVerificationAsync(request: InstrumentVerificationRequest, cancellationSignal: CancellationSignal?, callback: WalletCallback<InstrumentVerification>)
Asynchronously initiates a new payment instrument verification session for the specified instrumentType.
Parameters
request
An InstrumentVerificationRequest containing the request parameters.
cancellation
A CancellationSignal for canceling the operation.
callback
A callback to handle the result or error asynchronously.