src/vs/workbench/api/common/extHostEditorTabs.ts/ExtHostEditorTabs/_findExtHostTabGroupFromApi
class ExtHostEditorTabs:	private _findExtHostTabGroupFromApi(apiTabGroup: vscode.TabGroup): ExtHostEditorTabGroup | undefined {
		return this._extHostTabGroups.find(candidate => candidate.apiObject === apiTabGroup);
	}