[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Target](./puppeteer.protocol.target.md) > [AttachedToTargetEvent](./puppeteer.protocol.target.attachedtotargetevent.md) ## Protocol.Target.AttachedToTargetEvent interface Issued when attached to target because of auto-attach or `attachToTarget` command. Signature: ```typescript export interface AttachedToTargetEvent ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [sessionId](./puppeteer.protocol.target.attachedtotargetevent.sessionid.md) | [SessionID](./puppeteer.protocol.target.sessionid.md) | Identifier assigned to the session used to send/receive messages. | | [targetInfo](./puppeteer.protocol.target.attachedtotargetevent.targetinfo.md) | [TargetInfo](./puppeteer.protocol.target.targetinfo.md) | | | [waitingForDebugger](./puppeteer.protocol.target.attachedtotargetevent.waitingfordebugger.md) | boolean | |