method types.VecFixed.withimport { types } from "https://dotland.deno.dev/x/polkadot@0.2.23/mod.ts"; const { VecFixed } = types; with<O extends Codec>(Type: CodecClass<O> | string, length: number): CodecClass<VecFixed<O>>Type ParametersO extends CodecParametersType: CodecClass<O> | stringlength: numberReturnsCodecClass<VecFixed<O>>