How to use the @pulumi/awsx.dynamodb function in @pulumi/awsx

const restApiMetric = awsx.apigateway.metrics.error5XX({ restApi });
const restApiAlarm = restApiMetric.createAlarm("alarm" + alarmIndex++, { threshold: 50, evaluationPeriods: 2 });

const table = new aws.dynamodb.Table("testtable", {
    attributes: [{
        name: "id",
        type: "S",
    }],
    hashKey: "id",
    readCapacity: 5,
    writeCapacity: 5,
    streamEnabled: true,
    streamViewType: "NEW_AND_OLD_IMAGES",
});

const tableMetric = awsx.dynamodb.metrics.throttledRequests({ table });
const tableAlarm = tableMetric.createAlarm("alarm" + alarmIndex++, { threshold: 120, evaluationPeriods: 2 });

const bucket = new aws.s3.Bucket("b", {
    acl: "private",
    tags: {
        Environment: "Dev",
        Name: "My bucket",
    },
});

const bucketMetric = awsx.s3.metrics.firstByteLatency({ bucket, unit: "Seconds" });
const bucketAlarm = bucketMetric.createAlarm("alarm" + alarmIndex++, { threshold: 30 , evaluationPeriods: 2 });

const ubuntu = pulumi.output(aws.getAmi({
    filters: [
        { name: "name", values: ["ubuntu/images/hvm-ssd/ubuntu-trusty-14.04-amd64-server-*"] },