function assertThrowsAsyncimport { assertThrowsAsync } from "https://deno.land/std@0.57.0/testing/asserts.ts"; assertThrowsAsync<T = void>(fn: () => Promise<T>,ErrorClass?: Constructor,msgIncludes?,msg?: string,): Promise<Error>Type ParametersoptionalT = voidParametersfn: () => Promise<T>optionalErrorClass: ConstructoroptionalmsgIncludes = [UNSUPPORTED]optionalmsg: stringReturnsPromise<Error>