interface IStruct implements Map<K, V>, CodecRe-exportimport { type IStruct } from "https://deno.land/x/polkadot@0.2.45/types/types/index.ts"; Type ParametersoptionalK = stringoptionalV extends Codec = CodecPropertiesreadonlydefKeys: string[]MethodsgetAtIndex(index: number): CodectoArray(): Codec[]