in src/datasource.ts [51:64]
constructor(instanceSettings: DataSourceInstanceSettings<MyDataSourceOptions>) {
super(instanceSettings);
this.url = instanceSettings.url;
this.variables$ = new Subject<VariableModel>();
this.annotations = {};
if (typeof instanceSettings.basicAuth === 'string' && instanceSettings.basicAuth.length > 0) {
(HEADERS as any)['Authorization'] = instanceSettings.basicAuth;
}
// SystemJS .load('app/core/app_events').then((appEvents: any) => {
// this.appEvents = appEvents;
// });
}