property LookupOptions.family
Usage in Deno
```typescript import { type LookupOptions } from "node:node__dns.d.ts"; ```The record family. Must be `4`, `6`, or `0`. For backward compatibility reasons, `'IPv4'` and `'IPv6'` are interpreted
as `4` and `6` respectively. The value 0 indicates that either an IPv4 or IPv6 address is returned. If the value `0` is used
with `{ all: true } (see below)`, both IPv4 and IPv6 addresses are returned.
number
| "IPv4"
| "IPv6"
| undefined