import { many0 } from "https://deno.land/x/pazza@v0.3.0/mod.ts";
Repeat them embedded parser any times, at least 0.
many0(alpha())("").output; // ==> []
many0(alpha())("a").output; // ==> ["a"]
many0(alpha())("a1").output; // ==> ["a"]
many0(alpha())("a1").input === "1";