Properties
Static appkey
appkey: undefined | string
Static browser
browser: undefined | string
Static businessId
businessId: undefined | string
Static callId
callId: undefined | string
Static channel
channel: undefined | string
Static content
content: undefined | string
Static platform
platform: undefined | string
Static sdkVersion
sdkVersion: undefined | string
Static traceId
traceId: undefined | string
Static username
username: undefined | string
构造函数