Function normalize

normalize(
code: "NI_CEDULA" | "NI_RUC" | "NI_PASAPORTE" | ShortCode,
input: string,
): string
Normalize a Nicaraguan (NI) document by stripping separators and casing.
Parameters
- code: "NI_CEDULA" | "NI_RUC" | "NI_PASAPORTE" | ShortCode
  NI document type or short alias.
- input: string
  Raw document string.
Returns string
Storage-friendly normalized representation.
- Defined in countries/ni/index.ts:60