class internal.PassThrough
Usage in Deno
```typescript import { internal } from "node:node__stream.d.ts"; ```The `stream.PassThrough` class is a trivial implementation of a `Transform` stream that simply passes the input bytes across to the output. Its purpose is
primarily for examples and testing, but there are some use cases where `stream.PassThrough` is useful as a building block for novel sorts of streams.