Sample-json-plugin and a name of the panel plugin

Hi. How in the data source plug-in can I get information about the plug-in panel from which the data source methods are called? I need in the sample-json plugin to get the name of the plug-in panel which runs the metric search method.

this information is not available.

And how about “this.panrlCtrl”?

Accessable from datasource query controller, but not the datasource implementation