export declare type FiberSource = {
    fileName: string;
    lineNumber: number;
    columnNumber: number;
};
export declare type Fiber = {
    alternate: Fiber | null;
    return: Fiber | null;
    child: Fiber | null;
    sibling: Fiber | null;
    stateNode: Node | null;
    index: number;
    tag: number;
    memoizedProps?: {
        [key: string]: unknown;
    };
    _debugSource?: FiberSource;
    _debugOwner?: Fiber;
    elementType: string | Function | ElementTypeProvider;
    actualStartTime: number;
};
export declare type ElementTypeProvider = {
    $$typeof: Symbol;
    _context: {
        Consumer: unknown;
        Provider: unknown;
    };
    render?: Function & {
        displayName?: string;
    };
};
export declare function getReactFiber(element: Node): Fiber | null;
export declare function nodeIsComponentRoot(node: Node): node is HTMLElement;
export declare function nodeGetReactRoot(node: Node): Fiber | null;
export declare const fiberTags: {
    fragment: number;
};
export declare function fiberGetSiblings(fiber: Fiber): Fiber[];
export declare function elementGetOwnerWithSource(element: Node): Fiber | null;
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