Backend
constructor(drainPeriodInSeconds: Output<Int>? = null, id: Output<String>? = null, loadBalancerBackendAddresses: Output<List<LoadBalancerBackendAddressArgs>>? = null, location: Output<String>? = null, name: Output<String>? = null, syncMode: Output<Either<String, SyncMode>>? = null, tunnelInterfaces: Output<List<GatewayLoadBalancerTunnelInterfaceArgs>>? = null, virtualNetwork: Output<SubResourceArgs>? = null)