import { TypeRegistry } from "https://deno.land/x/polkadot@0.2.29/types/mod.ts";
Parameters
optional
userExtensions: ExtDefx/polkadot/types/mod.ts>TypeRegistry#setSignedExtensions
import { TypeRegistry } from "https://deno.land/x/polkadot@0.2.29/types/mod.ts";