How do I configure an Azure Virtual Network VPN gateway?

import * as pulumi from "@pulumi/pulumi";
import * as azure from "@pulumi/azure";

// Create a resource group
const example = new azure.core.ResourceGroup("example", {
    name: "example-resources",
    location: "West Europe",
});
// Create a virtual network
const exampleVirtualNetwork = new azure.network.VirtualNetwork("example", {
    name: "example-vnet",
    addressSpaces: ["10.0.0.0/16"],
    location: example.location,
    resourceGroupName: example.name,
});
// Create a subnet for the VPN gateway
const gateway = new azure.network.Subnet("gateway", {
    name: "GatewaySubnet",
    resourceGroupName: example.name,
    virtualNetworkName: exampleVirtualNetwork.name,
    addressPrefixes: ["10.0.1.0/24"],
});
// Create a public IP address for the gateway
const examplePublicIp = new azure.network.PublicIp("example", {
    name: "example-pip",
    location: example.location,
    resourceGroupName: example.name,
    allocationMethod: "Dynamic",
    sku: "Basic",
});
// Create the VPN gateway
const exampleVirtualNetworkGateway = new azure.network.VirtualNetworkGateway("example", {
    name: "example-gateway",
    location: example.location,
    resourceGroupName: example.name,
    type: "Vpn",
    vpnType: "RouteBased",
    activeActive: false,
    enableBgp: false,
    sku: "Basic",
    ipConfigurations: [{
        name: "vnetGatewayConfig",
        publicIpAddressId: examplePublicIp.id,
        privateIpAddressAllocation: "Dynamic",
        subnetId: gateway.id,
    }],
});
export const resourceGroupName = example.name;
export const virtualNetworkName = exampleVirtualNetwork.name;
export const subnetName = gateway.name;
export const publicIpAddress = examplePublicIp.ipAddress;
export const vpnGatewayId = exampleVirtualNetworkGateway.id;