Function validate

validate(code: "NL_BSN" | "NL_BTW" | ShortCode, input: string): boolean
Validate a Dutch (NL) identity or tax document.
Parameters
- code: "NL_BSN" | "NL_BTW" | ShortCode
  Document type, either fully-qualified (NL_BSN, NL_BTW) or short (BSN, BTW, VAT).
- input: string
  Raw document string (formatting tolerated).
Returns boolean
true if the value passes NL-specific validation rules.
Example
```
import { validate } from "nationid/nl";
validate("NL_BSN", "111222333");
validate("BTW", "NL123456789B01");
```
- Defined in countries/nl/index.ts:36