ChartLayout

const layout: ChartLayout = chart.serializeLayout({ user: 'sam' });
localStorage.setItem('layout', JSON.stringify(layout));
// ...later:
const restored: ChartLayout = JSON.parse(localStorage.getItem('layout')!);
chart.loadLayout(restored, drawingRegistry);

readonly alerts: readonly SerializedAlert[];

readonly optional compareSeries?: readonly SerializedCompareSeries[];

readonly optional corporateEvents?: readonly SerializedCorporateEvent[];

readonly drawings: readonly SerializedDrawingEntry[];

readonly kind: SeriesKind;

readonly optional magnet?: "off" | "weak" | "strong";

readonly optional meta?: Readonly<Record<string, unknown>>;

readonly optional persistentTool?: boolean;

readonly optional replay?: SerializedReplayState;

readonly symbol: LayoutSymbol;

readonly optional themeName?: string;

readonly version: 1 | 2;

readonly viewport: LayoutViewport;