import { type SyncOrAsyncCallback } from "https://deno.land/x/earthstar@v10.0.0/src/entries/universal.ts";
definition: (data: T) => Promise<void> | void
x/earthstar/src/entries/universal.ts>SyncOrAsyncCallback
import { type SyncOrAsyncCallback } from "https://deno.land/x/earthstar@v10.0.0/src/entries/universal.ts";