method FileHandle.chmod Usage in Deno```typescript import { type FileHandle } from "node:node__fs--promises.d.ts"; ``` FileHandle.chmod(mode: Mode): Promise<void> Modifies the permissions on the file. See [`chmod(2)`](http://man7.org/linux/man-pages/man2/chmod.2.html). Parameters mode: Mode the file mode bit mask. Return Type Promise<void> Fulfills with `undefined` upon success.