src/vs/workbench/contrib/notebook/browser/notebookKernelServiceImpl.ts/NotebookKernelService/dispose
class NotebookKernelService:	dispose() {
		this._disposables.dispose();
		this._onDidChangeNotebookKernelBinding.dispose();
		this._onDidAddKernel.dispose();
		this._onDidRemoveKernel.dispose();
		this._kernels.clear();
	}