method HashMap.withimport { HashMap } from "https://dotland.deno.dev/x/polkadot@0.2.35/types-codec/mod.ts"; with<K extends Codec, V extends Codec>(keyType: CodecClass<K> | string, valType: CodecClass<V> | string): CodecClass<CodecMap<K, V>>Type ParametersK extends CodecV extends CodecParameterskeyType: CodecClass<K> | stringvalType: CodecClass<V> | stringReturnsCodecClass<CodecMap<K, V>>