/**
 * Diff two virtual nodes and apply proper changes to the DOM
 * @param {import('../internal').PreactElement} parentDom The parent of the DOM element
 * @param {import('../internal').VNode} newVNode The new virtual node
 * @param {import('../internal').VNode} oldVNode The old virtual node
 * @param {object} globalContext The current context object. Modified by getChildContext
 * @param {boolean} isSvg Whether or not this element is an SVG node
 * @param {Array<import('../internal').PreactElement>} excessDomChildren
 * @param {Array<import('../internal').Component>} commitQueue List of components
 * which have callbacks to invoke in commitRoot
 * @param {Element | Text} oldDom The current attached DOM
 * element any new dom elements should be placed around. Likely `null` on first
 * render (except when hydrating). Can be a sibling DOM element when diffing
 * Fragments that have siblings. In most cases, it starts out as `oldChildren[0]._dom`.
 * @param {boolean} [isHydrating] Whether or not we are in hydration
 */
export function diff(parentDom: import('../internal').PreactElement, newVNode: import('../internal').VNode, oldVNode: import('../internal').VNode, globalContext: object, isSvg: boolean, excessDomChildren: Array<import('../internal').PreactElement>, commitQueue: Array<import('../internal').Component>, oldDom: Element | Text, isHydrating?: boolean | undefined): Text | import("../internal").PreactElement | null;
/**
 * @param {Array<import('../internal').Component>} commitQueue List of components
 * which have callbacks to invoke in commitRoot
 * @param {import('../internal').VNode} root
 */
export function commitRoot(commitQueue: Array<import('../internal').Component>, root: import('../internal').VNode): void;
/**
 * Invoke or update a ref, depending on whether it is a function or object ref.
 * @param {object|function} ref
 * @param {any} value
 * @param {import('../internal').VNode} vnode
 */
export function applyRef(ref: object | Function, value: any, vnode: import('../internal').VNode): void;
/**
 * Unmount a virtual node from the tree and apply DOM changes
 * @param {import('../internal').VNode} vnode The virtual node to unmount
 * @param {import('../internal').VNode} parentVNode The parent of the VNode that
 * initiated the unmount
 * @param {boolean} [skipRemove] Flag that indicates that a parent node of the
 * current element is already detached from the DOM.
 */
export function unmount(vnode: import('../internal').VNode, parentVNode: import('../internal').VNode, skipRemove?: boolean | undefined): void;