I have an object in NodeJS (a socket to be accurate).

When I print it, I see that one of the entries is this:

```
[Symbol(asyncId)]: 2781 // the numeric value changes

```

How can I obtain the value of such key?

I've tried `socket['[Symbol(asyncId)]']` but got `undefined`.

The expression `socket.[Symbol(asyncId)]` would obviously not work.