TypeScript types for React DOM Concurrent Mode API (createRoot and createBlockingRoot)

concurrent-mode.d.ts

declare module "react-dom" {
  interface ReactRoot {
    render(children: React.ReactNode, callback?: () => void): void;
    unmount(callback?: () => void): void;
  }

  interface RootOptions {
    hydrate?: boolean;
    hydrationOptions?: {
      onHydrated?: (suspenseNode: unknown) => void;
      onDeleted?: (suspenseNode: unknown) => void;
    };
  }

  export function createBlockingRoot(
    element: HTMLElement | null,
    options?: RootOptions
  ): ReactRoot;

  export function createRoot(
    element: HTMLElement | null,
    options?: RootOptions
  ): ReactRoot;
}
¯