method VecFixed.withimport { VecFixed } from "https://deno.land/x/polkadot@0.2.36/types-codec/mod.ts"; with<O extends Codec>(Type: CodecClass<O> | string, length: number): CodecClass<VecFixed<O>>Type ParametersO extends CodecParametersType: CodecClass<O> | stringlength: numberReturnsCodecClass<VecFixed<O>>