interface SignerOptionsimport { type SignerOptions } from "https://dotland.deno.dev/x/polkadot@0.2.23/api-base/types/index.ts"; PropertiesblockHash: Uint8Array | stringoptionalera: IExtrinsicEra | numbernonce: AnyNumber | Codecoptionalsigner: Signeroptionaltip: AnyNumberoptionalassetId: AnyNumber