async function render(c) : Promise<HtlEscapedString> {
    return (<body/>)
  }

  .get('/bar', async (c) => {
    return c.html(render(c))
  })

  async function render(c) : Promise<HtlEscapedString> {
    return (<body/>)
  }

  .get('/bar', async (c) => {
    return c.html(render(c))
  })

  async function render(c) : Promise<Response> {
    return c.html(<body/>)
  }

  .get('/bar', async (c) => {
    return render(c)
  })

  async function render(c) : Promise<Response> {
    return c.html(<body/>)
  }

  .get('/bar', async (c) => {
    return render(c)
  })

No overload matches this call.
  The last overload gave the following error.
    Argument of type '(c: Context<Env, "/bar", BlankInput>) => Promise<HtmlEscapedString>' is not assignable to parameter of type 'H<Env, "/bar", BlankInput, HandlerResponse<any>>'.
      Type '(c: Context<Env, "/bar", BlankInput>) => Promise<HtmlEscapedString>' is not assignable to type 'MiddlewareHandler<Env, "/bar", BlankInput>'.
        Type 'Promise<HtmlEscapedString>' is not assignable to type 'Promise<void | Response>'.
          Type 'HtmlEscapedString' is not assignable to type 'void | Response'.

No overload matches this call.
  The last overload gave the following error.
    Argument of type '(c: Context<Env, "/bar", BlankInput>) => Promise<HtmlEscapedString>' is not assignable to parameter of type 'H<Env, "/bar", BlankInput, HandlerResponse<any>>'.
      Type '(c: Context<Env, "/bar", BlankInput>) => Promise<HtmlEscapedString>' is not assignable to type 'MiddlewareHandler<Env, "/bar", BlankInput>'.
        Type 'Promise<HtmlEscapedString>' is not assignable to type 'Promise<void | Response>'.
          Type 'HtmlEscapedString' is not assignable to type 'void | Response'.