Youtube Content ID API v1在API Explorer中返回401错误

Question

任何API调用（ex - youtubePartner.assets.get（））都会给出401错误 - AssetID - ContentID资产的ID 选择范围 - https://www.googleapis.com/auth/youtubepartner

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "authError",
    "message": "Invalid Credentials",
    "locationType": "header",
    "location": "Authorization"
   }
  ],
  "code": 401,
  "message": "Invalid Credentials"
 }
}