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