type FilterFunc = (path: string, object: any) => boolean;
type FilterSelector = string | string[] | FilterFunc;
export interface DeepSyncOptions {
    /**
     * Accepts a list of JSONPath patterns.
     * Any objects that are set at those paths are directly stored as
     * references instead of being duplicated into an observable object.
     */
    refs?: FilterSelector;
    /**
     * Accepts a list of JSONPath patterns.
     * Any objects that are set at those paths will not be included
     * in the duplicated object.
     */
    exclude?: FilterSelector;
}
export declare function deep_sync_adv<T>(target: any, obj: T, options?: DeepSyncOptions): T;
export declare function deep_merge_adv<T>(target: T, obj: T, options?: DeepSyncOptions): T;
export declare function deep_duplicate_adv<T>(obj: T, options?: DeepSyncOptions): T;
export declare function deepSyncInternal(target: any, source: any, options: {
    refPaths: FilterFunc;
    excludePaths: FilterFunc;
    currentPath: string[];
    delete_missing?: boolean;
    initializeMissingValue?: (v: any, recurse: (target: any) => any) => any;
}): void;
export declare function normalizeFilter(spec: FilterSelector, obj: any): FilterFunc;
export {};