Type Inference Issue with `Effect.fn` in Service Definition

export class Service1 extends Context.Tag("Service1")<
  Service1,
  {
    createTodo: (content: string) => Effect.Effect<string>;
  }
>() {}

const LiveService1 = Layer.effect(
  Service1,
  Effect.gen(function* () {
    return {
      createTodo: (content) => {// type of content is string
        return Effect.gen(function* () { 
          return "hello";
        });
      },
    };
  }),
);

const LiveService2 = Layer.effect(
  Service1,
  Effect.gen(function* () {
    return {
      createTodo: Effect.fn(function* (content) {  // type of content is any
        return "hello";
      }),
    };
  }),
);