discord.py embed set_imageの画像の編集

前提・実現したいこと

はじめまして、現在pythonを使ってdiscordのbotを作っています。
embedのset_imageの画像を編集するものを作りたいです。

発生している問題・エラーメッセージ

Traceback (most recent call last):
  File "C:\Users\81808\source\repos\run\mmo\command.py", line 1727, in tester
    await image_menu.edit(file=file,embed=embed)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\discord\message.py", line 829, in edit
    data = await self._state.http.edit_message(self.channel.id, self.id, **fields)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\discord\http.py", line 136, in request
    kwargs['data'] = utils.to_json(kwargs.pop('json'))
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\discord\utils.py", line 304, in to_json
    return json.dumps(obj, separators=(',', ':'), ensure_ascii=True)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\json\__init__.py", line 238, in dumps
    **kw).encode(obj)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\json\encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\json\encoder.py", line 257, in iterencode
    return _iterencode(o, 0)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\json\encoder.py", line 179, in default
    raise TypeError(f'Object of type {o.__class__.__name__} '
TypeError: Object of type File is not JSON serializable

該当のソースコード

Python
1
2async def tester(self, ctx): 
3      base_image1_path = r'./image_data/login_menu.png'
4      base_img = Image.open(base_image1_path)
5      base_img.save("image.png")
6      file = discord.File("image.png")
7      embed=discord.Embed()
8      embed.set_image(url="attachment://image.png")
9      image_menu=await ctx.send(file=file,embed=embed)
10      await asyncio.sleep(3)
11      base_image2_path = r'./image_data/background.png'
12      base_img = Image.open(base_image2_path)
13      base_img.save("image.png")
14      file = discord.File("image.png")
15      embed=discord.Embed()
16      embed.set_image(url="attachment://image.png")
17      await image_menu.edit(file=file,embed=embed)

試したこと

await image_menu.edit(file=file,embed=embed)をawait image_menu.edit(embed=embed)とやってみた。
await image_menu.edit(file=file,embed=embed)をawait image_menu.edit(embed=embed,file=file)とやってみた