getVersion method
获取版本号
Implementation
@override
Future<V2TimValueCallback<String>> getVersion() async {
var resp = V2TimValueCallback<String>.fromJson(
formatJson(
await _channel.invokeMethod(
'getVersion',
buildTimManagerParam(
{},
),
),
),
);
log("getVersion", {}, resp.toLogString());
return resp;
}