Function validate

validate(code: "IT_CF" | "IT_PIVA" | ShortCode, input: string): boolean
Validate an Italian (IT) identity or tax document.
Parameters
- code: "IT_CF" | "IT_PIVA" | ShortCode
  Document type, either fully-qualified (IT_CF, IT_PIVA) or short (CF, CODICE_FISCALE, PIVA, P_IVA, VAT).
- input: string
  Raw document string (formatting tolerated).
Returns boolean
true if the value passes IT-specific validation rules.
Example
```
import { validate } from "nationid/it";
validate("IT_CF", "RSSMRA80A01H501U");
validate("PIVA", "12345670017");
```
- Defined in countries/it/index.ts:36