[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Debugger](./puppeteer.protocol.debugger.md) > [CallFrameId](./puppeteer.protocol.debugger.callframeid.md) ## Protocol.Debugger.CallFrameId type Call frame identifier. Signature: ```typescript export type CallFrameId = string; ```