method cli.Command.prototype.actionRe-exportimport { cli } from "https://deno.land/x/create_react_app@v0.1.2/deps.ts"; const { Command } = cli; action(fn: IAction<CO, CA, CG, PG, P>): thisSet command callback method. Parametersfn: IAction<CO, CA, CG, PG, P>Command action handler. Returnsthis