Python Sendgrid 附件：字节的对象类型不可 JSON 序列化

我正在try 使用sendgrid包以JSON文件的形式发送一个pythondict作为邮箱附件.

以下是代码:

from sendgrid import SendGridAPIClient
from sendgrid import Mail
from sendgrid import Email
from sendgrid import Attachment

final_data = {"user":{"email": "test@gmail.com", "username": "test1"}}
result = json.dumps(final_data)
print(f"Result type {type(result)}")
encoded = base64.b64encode(result.encode("utf-8"))
print(f"encoded : {encoded}")
attachment = Attachment(file_content=encoded, file_name="user.json", file_type="application/json")
message.add_attachment(attachment)
sg.send(message)

第sg.send(message)行抛出错误:Object of type bytes is not JSON serializable

我见过这么多关于如何编码到base64的问题，但我确实做到了，下面是这个代码片段的全部痕迹:

Result type <class 'str'>
encoded : b'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'
ERROR:root:export_all_data: Object of type bytes is not JSON serializable

编辑:

我已将我的代码更改为使用:

from sendgrid import FileContent
from sendgrid import FileName
from sendgrid import FileType
attachment = Attachment(file_content=FileContent(encoded), file_name=FileName("user.json"),
                                file_type=FileType("application/json"))

根据documentation，但不幸的是，它仍然失败.