Set Channel

1. This interface is for developers to identify channels by setting channel names by themselves.
2. It is recommended to call the setChannel interface before initializing the SDK. This allows all reported events to be tagged with the specified channel name.
3. If developers do not pass a channel name or pass a null channel name, the SDK will automatically collect the channel name, which may result in a null value.

Call example:

solarengine.setChannel("Google");