Function normalize

normalize(
code: "SV_DUI" | "SV_NIT" | "SV_PASAPORTE" | ShortCode,
input: string,
): string
Normalize a Salvadoran (SV) document by stripping separators and casing.
Parameters
- code: "SV_DUI" | "SV_NIT" | "SV_PASAPORTE" | ShortCode
  SV document type or short alias.
- input: string
  Raw document string.
Returns string
Storage-friendly normalized representation.
- Defined in countries/sv/index.ts:61