property Process.getgroups
Usage in Deno
```typescript import { type Process } from "node:node__process.d.ts"; ```The `process.getgroups()` method returns an array with the supplementary group
IDs. POSIX leaves it unspecified if the effective group ID is included but
Node.js ensures it always is.
```js
import process from 'node:process';
if (process.getgroups) {
console.log(process.getgroups()); // [ 16, 21, 297 ]
}
```
This function is only available on POSIX platforms (i.e. not Windows or
Android).
() => number[]