/**
 * Reconnect backoff for RealtimeStore's WebSocket.
 *
 * A server that sheds load closes many sockets at once (1013). Without jitter
 * every client comes back at the same instant; without growth on quick closes a
 * socket that is accepted and then immediately dropped retries at the floor
 * forever. So: a connection that stayed up for STABLE_CONNECTION_MS resets the
 * delay, a shorter one doubles it, and every scheduled wait is jittered.
 */
export declare const RECONNECT_BASE_DELAY_MS = 1000;
export declare const RECONNECT_MAX_DELAY_MS = 30000;
export declare const STABLE_CONNECTION_MS = 10000;
/** Delay to use after a close, given how long the closed connection had been up (null: never connected). */
export declare function reconnectDelayAfterClose(currentDelayMs: number, connectedForMs: number | null, maxDelayMs?: number): number;
/** The wait actually scheduled: the delay scaled by a random factor in [0.5, 1.5). */
export declare function jitteredReconnectDelayMs(delayMs: number, random?: () => number): number;