import { type Earthstar } from "https://deno.land/x/earthstar_replica_server@4.0.0-beta.1/deps.ts";
const { SyncOrAsyncCallback } = Earthstar;
definition: (data: T) => Promise<void> | void
x/earthstar_replica_server/deps.ts>Earthstar.SyncOrAsyncCallback
import { type Earthstar } from "https://deno.land/x/earthstar_replica_server@4.0.0-beta.1/deps.ts";
const { SyncOrAsyncCallback } = Earthstar;