function flattenimport { flatten } from "https://dotland.deno.dev/x/proc@0.21.9/tests/deps/asynciter.ts"; flatten<T>(iterable: AsyncIterable<Iterable<T> | AsyncIterable<T>>): AsyncIterableIterator<T>Flatten the iterable. Type ParametersTParametersiterable: AsyncIterable<Iterable<T> | AsyncIterable<T>>An iterable collection containing iterable collections. ReturnsAsyncIterableIterator<T>An iterator where a level of indirection has been removed. import flattenimport { flatten } from "https://dotland.deno.dev/x/proc@0.21.9/tests/deps/asynciter.ts";