import { AutoScalingClient, AttachInstancesCommand } from "@aws-sdk/client-auto-scaling"; // ES Modules import
// const { AutoScalingClient, AttachInstancesCommand } = require("@aws-sdk/client-auto-scaling"); // CommonJS import
const client = new AutoScalingClient(config);
const command = new AttachInstancesCommand(input);
const response = await client.send(command);

import { AutoScalingClient, AttachLoadBalancersCommand } from "@aws-sdk/client-auto-scaling"; // ES Modules import
// const { AutoScalingClient, AttachLoadBalancersCommand } = require("@aws-sdk/client-auto-scaling"); // CommonJS import
const client = new AutoScalingClient(config);
const command = new AttachLoadBalancersCommand(input);
const response = await client.send(command);

import * as AWS from "@aws-sdk/client-auto-scaling";
const client = new AWS.AutoScaling({ region: "REGION" });

// async/await.
try {
  const data = await client.attachInstances(params);
  // process data.
} catch (error) {
  // error handling.
}

// Promises.
client
  .attachInstances(params)
  .then((data) => {
    // process data.
  })
  .catch((error) => {
    // error handling.
  });

// callbacks.
client.attachInstances(params, (err, data) => {
  // proccess err and data.
});

import { AutoScalingClient, SetInstanceProtectionCommand } from "@aws-sdk/client-auto-scaling"; // ES Modules import
// const { AutoScalingClient, SetInstanceProtectionCommand } = require("@aws-sdk/client-auto-scaling"); // CommonJS import
const client = new AutoScalingClient(config);
const command = new SetInstanceProtectionCommand(input);
const response = await client.send(command);

import { AutoScalingClient, TerminateInstanceInAutoScalingGroupCommand } from "@aws-sdk/client-auto-scaling"; // ES Modules import
// const { AutoScalingClient, TerminateInstanceInAutoScalingGroupCommand } = require("@aws-sdk/client-auto-scaling"); // CommonJS import
const client = new AutoScalingClient(config);
const command = new TerminateInstanceInAutoScalingGroupCommand(input);
const response = await client.send(command);