function truncateSync
Usage in Deno
```typescript import { truncateSync } from "node:node__fs.d.ts"; ```
truncateSync(path: PathLike,len?: number | null,): void
Truncates the file. Returns `undefined`. A file descriptor can also be
passed as the first argument. In this case, `fs.ftruncateSync()` is called.
Passing a file descriptor is deprecated and may result in an error being thrown
in the future.
path: PathLike
void