src/vs/workbench/contrib/notebook/browser/notebook.contribution.ts/ComplexNotebookWorkingCopyEditorHandler/constructor
class ComplexNotebookWorkingCopyEditorHandler:	constructor(
		@IInstantiationService private readonly _instantiationService: IInstantiationService,
		@IWorkingCopyEditorService private readonly _workingCopyEditorService: IWorkingCopyEditorService,
		@IExtensionService private readonly _extensionService: IExtensionService,
		@IWorkingCopyBackupService private readonly _workingCopyBackupService: IWorkingCopyBackupService
	) {
		super();

		this._installHandler();
	}