grafana/public/app/features/dashboard/state/selectors.ts

import { StoreState } from 'app/types';
import { PanelPlugin } from '@grafana/data';
import { getPanelPluginNotFound } from '../../panel/components/PanelPluginError';

export const getPanelPluginWithFallback = (panelType: string) => (state: StoreState): PanelPlugin => {
  const plugin = state.plugins.panels[panelType];
  return plugin || getPanelPluginNotFound(`Panel plugin not found (${panelType})`, true);
};