```typescript
import { type OnReadOpts } from "node:node__net.d.ts";
```
OnReadOpts.callback(
bytesWritten: number,
buffer: Uint8Array,
): boolean
This function is called for every chunk of incoming data.
Two arguments are passed to it: the number of bytes written to `buffer` and a reference to `buffer`.
Return `false` from this function to implicitly `pause()` the socket.