PhoneWarningCode

type PhoneWarningCode =
  | "unknown-country"
  | "unknown-default-country"
  | "value-not-e164"
  | "value-country-unknown"
  | "empty-country-list"
  | "locale-invalid"
  | "max-length-too-small";

Stable machine code for a coerced or rejected input. Safe to switch on.