type InternalProxySet<T> = Set<T> & {
    data: T[];
    toJSON: object;
    index: number;
    epoch: number;
    intersection: (other: Set<T>) => Set<T>;
    union: (other: Set<T>) => Set<T>;
    difference: (other: Set<T>) => Set<T>;
    symmetricDifference: (other: Set<T>) => Set<T>;
    isSubsetOf: (other: Set<T>) => boolean;
    isSupersetOf: (other: Set<T>) => boolean;
    isDisjointFrom: (other: Set<T>) => boolean;
};
export declare const isProxySet: (obj: object) => boolean;
/**
 * proxySet
 *
 * This is to create a proxy which mimic the native Set behavior.
 * The API is the same as Set API
 *
 * @example
 * import { proxySet } from 'valtio/utils'
 * const state = proxySet([1,2,3])
 * // can be used inside a proxy as well
 * const state = proxy({
 *   count: 1,
 *   set: proxySet()
 * })
 */
export declare function proxySet<T>(initialValues?: Iterable<T> | null): InternalProxySet<T> & {
    $$valtioSnapshot: Omit<InternalProxySet<T>, "set" | "delete" | "clear">;
};
export {};