--- sidebar_label: CustomQueryHandler --- # CustomQueryHandler interface **Signature:** ```typescript export interface CustomQueryHandler ``` ## Properties | Property | Modifiers | Type | Description | | ------------------------------------------------------- | --------- | ------------------------------------------------- | ----------------- | | [queryAll?](./puppeteer.customqueryhandler.queryall.md) | | (node: Node, selector: string) => Node\[\] | (Optional) | | [queryOne?](./puppeteer.customqueryhandler.queryone.md) | | (node: Node, selector: string) => Node \| null | (Optional) |