Function normalize

normalize(
code: "GT_DPI" | "GT_NIT" | "GT_PASAPORTE" | ShortCode,
input: string,
): string
Normalize a Guatemalan (GT) document by stripping separators and casing.
Parameters
- code: "GT_DPI" | "GT_NIT" | "GT_PASAPORTE" | ShortCode
  GT document type or short alias.
- input: string
  Raw document string.
Returns string
Storage-friendly normalized representation.
- Defined in countries/gt/index.ts:60