type alias UnsubscribePromiseimport { type UnsubscribePromise } from "https://dotland.deno.dev/x/polkadot@0.2.23/api/types/index.ts"; definition: Promise<VoidFn>import UnsubscribePromiseimport { UnsubscribePromise } from "https://dotland.deno.dev/x/polkadot@0.2.23/api/types/index.ts";