interface InputHandlerimport { type InputHandler } from "https://dotland.deno.dev/x/proc@0.21.9/legacy/examples/deps.ts"; The interface of an input handler. Type ParametersAPropertiesprocessInput: (input: A, stdin: MultiCloseWriter) => Promise<void>Called by the runner to process the input data. MethodsgetterfailOnEmptyInput(): booleanA hack to detect when empty input is actually an error at runtime, since I can't get Typescript to figure it out at compile time. import InputHandlerimport { InputHandler } from "https://dotland.deno.dev/x/proc@0.21.9/legacy/examples/deps.ts";