sagaVerifier
fun <T : Any> Class<T>.sagaVerifier(serviceProvider: ServiceProvider = SimpleServiceProvider(), commandGateway: CommandGateway = defaultCommandGateway(), commandMessageFactory: CommandMessageFactory = SimpleCommandMessageFactory(
commandBuilderRewriterRegistry = SimpleCommandBuilderRewriterRegistry()
)): WhenStage<T>
inline fun <T : Any> sagaVerifier(serviceProvider: ServiceProvider = SimpleServiceProvider(), commandGateway: CommandGateway = defaultCommandGateway()): WhenStage<T>