v1.1 has a bug compared to v0 and v1.0: require can't take a number

I get this error output in my tests:
```
node:internal/validators:114
throw new ERR_INVALID_ARG_TYPE(name, 'string', value);
^

TypeError [ERR_INVALID_ARG_TYPE]: The "id" argument must be of type string. Received type number (298)
at new NodeError (node:internal/errors:388:5)
at validateString (node:internal/validators:114:11)
at Module.require (node:internal/modules/cjs/loader:1005:3)
at require (node:internal/modules/cjs/helpers:102:18)
```

I suspect this was introduced in #31.