How to execute mutation outside of react context?

const trpcClient = trpc.useContext();

  useEffect(() => {
    if (typeof window !== "undefined") {
      (window as any).trpcClient = trpcClient.client;
    }
  }, [trpcClient])

export const getTRPCClient = (): ReturnType<typeof trpc["useContext"]["client"]> => {
    return (window as any).trpcClient;
};

const client = getTRPCClient();
const url = await client.mutation("...");