尝试创建"activitymimeattachment“时获取空的pdf附件

import tencentcloud
from tencentcloud.common import credential
from tencentcloud.common.profile.client_profile import ClientProfile
from tencentcloud.common.profile.http_profile import HttpProfile
from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
from tencentcloud.tmt.v20180321 import tmt_client, models

def create_activity_with_pdf_attachment():
    try:
        # 配置腾讯云API密钥
        cred = credential.Credential("your-secret-id", "your-secret-key")

        # 配置HTTP选项
        httpProfile = HttpProfile()
        httpProfile.endpoint = "tmt.tencentcloudapi.com"

        # 配置客户端选项
        clientProfile = ClientProfile()
        clientProfile.httpProfile = httpProfile

        # 实例化腾讯云翻译服务客户端
        client = tmt_client.TmtClient(cred, "ap-guangzhou", clientProfile)

        # 创建活动
        activity = create_activity()

        # 读取PDF文件内容
        with open("path/to/pdf/file.pdf", "rb") as file:
            pdf_content = file.read()

        # 创建MIME附件
        attachment = create_mime_attachment(pdf_content)

        # 将MIME附件添加到活动中
        activity.attachments.append(attachment)

        # 执行其他操作...

    except TencentCloudSDKException as err:
        print(err)

def create_activity():
    # 创建活动的逻辑...
    pass

def create_mime_attachment(content):
    # 创建MIME附件的逻辑...
    pass

create_activity_with_pdf_attachment()