如何修复使用python创建谷歌日历事件时出现的.get()错误？

from googleapiclient.discovery import build
from google.oauth2.credentials import Credentials

# 配置API凭据
creds = Credentials.from_authorized_user_file('credentials.json')
service = build('calendar', 'v3', credentials=creds)

# 创建日历事件对象
event = {
    'summary': '测试事件',
    'start': {
        'dateTime': '2022-01-01T10:00:00',
        'timeZone': 'Asia/Shanghai',
    },
    'end': {
        'dateTime': '2022-01-01T12:00:00',
        'timeZone': 'Asia/Shanghai',
    },
}

try:
    # 调用API创建日历事件
    created_event = service.events().insert(calendarId='primary', body=event).execute()
    print('事件创建成功:', created_event.get('htmlLink'))
except Exception as e:
    print('发生错误:', e)