import { filter } from "https://deno.land/x/async_channels@v1.0.0-rc5/src/pipe.ts";
Parameters
fn: (val: T) => boolean | Promise<boolean>
optional
pipeOpts: ChannelPipeOptionsimport { filter } from "https://deno.land/x/async_channels@v1.0.0-rc5/src/pipe.ts";