import type { Readable } from "svelte/store";
export declare type NetworkType = "bluetooth" | "cellular" | "ethernet" | "none" | "wifi" | "wimax" | "other" | "unknown";
export declare type NetworkEffectiveType = "slow-2g" | "2g" | "3g" | "4g" | undefined;
export interface NetworkState {
    is_supported: Readable<boolean>;
    /**
     * If the user is currently connected.
     */
    online: Readable<boolean>;
    /**
     * The time since the user was last connected.
     */
    offline_at: Readable<number | undefined>;
    /**
     * At this time, if the user is offline and reconnects
     */
    online_at: Readable<number | undefined>;
    /**
     * The download speed in Mbps.
     */
    downlink: Readable<number | undefined>;
    /**
     * The max reachable download speed in Mbps.
     */
    downlink_max: Readable<number | undefined>;
    /**
     * The detected effective speed type.
     */
    effective_type: Readable<NetworkEffectiveType | undefined>;
    /**
     * The estimated effective round-trip time of the current connection.
     */
    rtt: Readable<number | undefined>;
    /**
     * If the user activated data saver mode.
     */
    save_data: Readable<boolean | undefined>;
    /**
     * The detected connection/network type.
     */
    type: Readable<NetworkType>;
}
/**
 * Reactive Network status.
 *
 * @param options
 */
export declare function network(): NetworkState;