src/vs/workbench/contrib/interactive/browser/interactiveEditorInput.ts/InteractiveEditorInput/getSerialization
class InteractiveEditorInput:	getSerialization(): { notebookData: any | undefined; inputData: any | undefined } {
		return {
			notebookData: this._serializeNotebook(this._editorModelReference?.notebook),
			inputData: this._inputModelRef ? {
				value: this._inputModelRef.object.textEditorModel.getValue(),
				language: this._inputModelRef.object.textEditorModel.getLanguageId()
			} : undefined
		};
	}