function runnerimport { runner } from "https://dotland.deno.dev/x/proc@0.21.9/legacy/mod.ts"; runner<A, B>(input: InputHandler<A>, output: OutputHandler<B>): (group?: Group) => Runner<A, B>Define a reusable process runner. Type ParametersABParametersinput: InputHandler<A>Handler for the input to the process. output: OutputHandler<B>Handler for the output from the process. Returns(group?: Group) => Runner<A, B>A process runner.