A UnionAsserter is an Asserter for the union of the Types of its memberAsserters.

The provided memberAsserters are made accessible as a property of the created UnionAsserter.

The union function can be used to create a UnionAsserter without specifying a typeName.

Example:

import { _null, _string, Asserted, UnionAsserter } from "typeguardkit";

export const _stringOrNull = new UnionAsserter(
  "stringOrNull",
  [_string, _null],
);

export type stringOrNull = Asserted<typeof _stringOrNull>;