import { P } from "https://deno.land/x/fuzzy_octo_guacamole@v2.0.0/mod.ts";
const { select } = P;
P.select()
is a pattern which will always match,
and will inject the selected piece of input in the handler function.
Parameters
patternOrKey: patternOrKey
Returns
patternOrKey extends string ? SelectP<patternOrKey> : SelectP<symbols.anonymousSelectKey, input, patternOrKey>