function getTypeClassimport { getTypeClass } from "https://deno.land/x/polkadot@0.2.16/types/create/index.ts"; getTypeClass<T extends Codec = Codec>(registry: Registry, typeDef: TypeDef): CodecClass<T>Type ParametersoptionalT extends Codec = CodecParametersregistry: RegistrytypeDef: TypeDefReturnsCodecClass<T>