import { firstObservable } from "https://deno.land/x/polkadot@0.2.38/api-derive/util/index.ts";
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x/polkadot/api-derive/util/index.ts>firstObservable
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x/polkadot/api-derive/util/index.ts>firstObservable
import { firstObservable } from "https://deno.land/x/polkadot@0.2.38/api-derive/util/index.ts";