import { FiberTag, type Fiber, type FiberRoot, type ReactElement, type ReactNode, type Effect } from '../core';
export declare function scheduleUpdate(fiber: Fiber): void;
export declare function flushSyncWork(fn: () => void): void;
export declare function batchedUpdates<T>(fn: () => T): T;
export declare function discardPendingWork(root: FiberRoot): void;
export declare function findRoot(fiber: Fiber): FiberRoot | null;
export declare function renderRoot(root: FiberRoot, children: ReactNode): void;
type NormalizedChild = ReactElement | string | null;
export declare function childrenToArray(children: ReactNode): NormalizedChild[];
/**
 * Reconcile a parent fiber's child list against new normalized children.
 * Mutates parent.child and the sibling chain.
 * Mounts new host DOM into `domParent` before `anchor` (or appends if anchor === null).
 */
export declare function reconcileChildren(parent: Fiber, newChildren: NormalizedChild[], domParent: Node, anchor: Node | null): void;
export type RenderFn = (fiber: Fiber, domParent: Node, anchor: Node | null) => void;
export type TypeMatcher = (type: any, marker: any) => FiberTag | null;
export declare function registerRenderer(tag: FiberTag, fn: RenderFn): void;
export declare function registerTypeMatcher(m: TypeMatcher): void;
export declare function registerElementMarker(sym: symbol): void;
export declare function getCurrentRoot(): FiberRoot | null;
export declare function withCurrentRoot<T>(root: FiberRoot | null, fn: () => T): T;
export declare function getForceRerenderingFiber(): Fiber | null;
export declare function renderFiber(fiber: Fiber, domParent: Node, anchor: Node | null): void;
export declare function deferHydration(fiber: Fiber, thenable: Promise<any>): boolean;
export interface Capabilities {
    handleSuspended: (fiber: Fiber, thenable: Promise<any>) => void;
    readContext: (fiber: Fiber, ctx: any) => any;
}
export declare function installCapability<K extends keyof Capabilities>(name: K, fn: Capabilities[K]): void;
export declare function handleSuspended(fiber: Fiber, thenable: Promise<any>): void;
export declare function handleErrorInRender(fiber: Fiber, err: any): void;
export declare function isThenable(x: any): x is Promise<any>;
export declare function unmountFiber(fiber: Fiber, domParent: Node): void;
export declare function unmountAllChildren(parent: Fiber, domParent: Node): void;
export declare function readContext(fiber: Fiber, ctx: any): any;
export declare function enqueueEffect(fiber: Fiber, effect: Effect): void;
export declare function scheduleLifecycle(_fiber: Fiber, fn: () => void): void;
export declare function runEffects(root: FiberRoot): void;
export {};