message: types: collapse undefined | unknown
diff: @@ -5,8 +5,8 @@ export type ValidatorResult = string | string[] | true;
  export type ValidatorFunction = (
  key: string,
  - newValue: undefined | unknown,
  - oldValue: undefined | unknown,
  + newValue: unknown,
  + oldValue: unknown,
  changes: Record<string, unknown>,
  content: Record<string, unknown>,
  ) => ValidatorResult;
  