import { type TypeHandler } from "https://deno.land/x/cliffy@v0.25.3/flags/types.ts";
Custom type handler/parser.
definition: (arg: ArgumentValue) => TReturn
x/cliffy/flags/types.ts>TypeHandler
import { type TypeHandler } from "https://deno.land/x/cliffy@v0.25.3/flags/types.ts";
Custom type handler/parser.