function unimplementedimport { unimplemented } from "https://dotland.deno.dev/x/proc@0.21.9/tests/deps/asserts.ts"; unimplemented(msg?: string): neverUse this to stub out methods that will throw when invoked. ExamplesExample 1 import { unimplemented } from "https://deno.land/std@$STD_VERSION/assert/unimplemented.ts"; unimplemented(); // Throws Parametersoptionalmsg: stringReturnsnever