Type helpers to match available paths

const appRouter = t.router({
  post: t.router({
    list: t.procedure
      .query(() => {
        // imaginary db call
        return [{ id: 1, title: 'tRPC is the best!' }];
    }),
    byId: t.procedure
      .input(z.string())
      .query((opts) => {
        // imaginary db call
        return { id: 1, title: 'tRPC is the best!' };
    }),
  }),
});