YouTube API v3 apiclient.errors.HttpError“未选择过滤器."- 我在哪里选择过滤器?

My first attempt at setting up the Google apiclient for YouTube and by following the docs I made this as a test (didn't find a specific example for the YouTube API):

import json
from apiclient.discovery import build
service = build('youtube', 'v3', developerKey = 'tralalala')
videos = service.videos()
request = videos.list(part = '7lCDEYXw3mM') # some video id
response = request.execute()
json.dumps(response, sort_keys = True, indent = 4)

我明白了

{
 "error": {
  "errors": [
   {
    "domain": "youtube.parameter",
    "reason": "missingRequiredParameter",
    "message": "No filter selected.",
    "locationType": "parameter",
    "location": ""
   }
  ],
  "code": 400,
  "message": "No filter selected."
 }
}

显然我缺少这个 filter，但我似乎无法在文档 google-api-client-libraries.appspot.com.我的意图是通过提供其 id 来获取视频详细信息.