message: Fix TypeScript compilation error in aws-ts-apigateway
  We know the pathParameters array will not be null, because we capture
  parameters in our route.
diff: @@ -18,7 +18,7 @@ let endpoint = new awsx.apigateway.API("hello-world", {
  path: "/{route+}",
  method: "GET",
  eventHandler: async (event) => {
  - let route = event.pathParameters["route"];
  + let route = event.pathParameters!["route"];
  console.log(`Getting count for '${route}'`);
  const client = new aws.sdk.DynamoDB.DocumentClient();
  