interface ChunkList {
    [key: number]: {
        unknowns: any[];
        version: any;
    } | null;
}
export default class Merger {
    /**
     * Merge unknowns and versions into an object of chunks.
     * @param chunks A list of chunks.
     * @param unknowns An object of unknowns.
     * @param versions An object of versions.
     * @returns combined chunks.
     */
    static mergeChunks(chunks: {
        [x: number]: boolean;
    }, unknowns: Unknowns, versions: Versions): ChunkList;
    /**
     * Destructively merge two instances of the same class.
     * @param target Instance to merge into.
     * @param source Instance to merge from.
     * @returns Merged instance.
     */
    static mergeInstances<NodeType>(target: NodeType, source: NodeType): NodeType;
}
export {};