interface HeaderValueimport { type HeaderValue } from "https://dotland.deno.dev/x/polkadot@0.2.45/types/generic/Block.ts"; Propertiesoptionaldigest: Digest | { logs: DigestItem[] | string[]; }optionalextrinsicsRoot: AnyU8aoptionalnumber: AnyNumberoptionalparentHash: AnyU8aoptionalstateRoot: AnyU8a