@lodestar/beacon-node/src/node/utils/lightclient.ts

A Typescript implementation of the beacon chain

import {LightClientServer} from "../../chain/lightClient/index.js";

export function assertLightClientServer(server: LightClientServer | undefined): asserts server is LightClientServer {
  if (!server) {
    throw Error("Light client server is disabled");
  }
}