method BTreeSet.withimport { BTreeSet } from "https://deno.land/x/polkadot@0.2.28/types-codec/mod.ts"; with<V extends Codec>(valType: CodecClass<V> | string): CodecClass<BTreeSet<V>>Type ParametersV extends CodecParametersvalType: CodecClass<V> | stringReturnsCodecClass<BTreeSet<V>>