import { firstObservable } from "https://dotland.deno.dev/x/polkadot@0.2.23/api-derive/util/index.ts";
x/polkadot/api-derive/util/index.ts>firstObservable
import { firstObservable } from "https://dotland.deno.dev/x/polkadot@0.2.23/api-derive/util/index.ts";