import { GenericExtrinsicSignatureV4 } from "https://deno.land/x/polkadot@0.2.36/types/extrinsic/v4/ExtrinsicSignature.ts";
Parameters
signer: Address | Uint8Array | string
signature: Uint8Array | HexString
payload: ExtrinsicPayloadValue | Uint8Array | HexString