request
open fun requestVirtualInstrumentAsync(request: VirtualInstrumentRequest, cancellationSignal: CancellationSignal?, callback: WalletCallback<VirtualInstrumentRequestStatus>)
Asynchronously requests assignment of new virtual instrument to existing balance account.
Parameters
request
The request for the virtual instrument.
cancellation
A signal for canceling the asynchronous operation (nullable).
callback
The callback to be invoked upon completion or error.