property ChildProcess.prototype.stderr
Usage in Deno
```typescript import { ChildProcess } from "node:node__child_process.d.ts"; ```A `Readable Stream` that represents the child process's `stderr`.
If the child was spawned with `stdio[2]` set to anything other than `'pipe'`,
then this will be `null`.
`subprocess.stderr` is an alias for `subprocess.stdio[2]`. Both properties will
refer to the same value.
The `subprocess.stderr` property can be `null` or `undefined` if the child process could not be successfully spawned.
Readable | null