DescribeApplicationCommand

import { ApplicationInsightsClient, DescribeApplicationCommand } from "@aws-sdk/client-application-insights"; // ES Modules import
// const { ApplicationInsightsClient, DescribeApplicationCommand } = require("@aws-sdk/client-application-insights"); // CommonJS import
const client = new ApplicationInsightsClient(config);
const input = { // DescribeApplicationRequest
  ResourceGroupName: "STRING_VALUE", // required
  AccountId: "STRING_VALUE",
};
const command = new DescribeApplicationCommand(input);
const response = await client.send(command);
// { // DescribeApplicationResponse
//   ApplicationInfo: { // ApplicationInfo
//     AccountId: "STRING_VALUE",
//     ResourceGroupName: "STRING_VALUE",
//     LifeCycle: "STRING_VALUE",
//     OpsItemSNSTopicArn: "STRING_VALUE",
//     SNSNotificationArn: "STRING_VALUE",
//     OpsCenterEnabled: true || false,
//     CWEMonitorEnabled: true || false,
//     Remarks: "STRING_VALUE",
//     AutoConfigEnabled: true || false,
//     DiscoveryType: "RESOURCE_GROUP_BASED" || "ACCOUNT_BASED",
//     AttachMissingPermission: true || false,
//   },
// };