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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import { AssertionError } from "./assertion_error.ts";
/** Use this to stub out methods that will throw when invoked. */export function unimplemented(msg?: string): never {  const msgSuffix = msg ? `: ${msg}` : ".";  throw new AssertionError(`Unimplemented${msgSuffix}`);}