import type { SdkFrame } from "./types";
export interface EventFrame extends SdkFrame {
    type: "event";
    generation: number;
    seq: number;
}
export type EventReplayGap = {
    kind: "generation_reset";
    fromGeneration: number;
    toGeneration: number;
    resyncQueries: string[];
} | {
    kind: "sequence_gap";
    fromSeq: number;
    toSeq: number;
    resyncQueries: string[];
};
export interface EventReplay {
    events: EventFrame[];
    gap?: EventReplayGap;
}
export declare class SessionEventStream {
    #private;
    constructor(options?: {
        generation?: number;
        ringSize?: number;
        resyncQueryIds?: string[];
    });
    get generation(): number;
    get sequence(): number;
    restart(): number;
    emit(frame: SdkFrame): EventFrame;
    /** Replays retained current-generation events and reports any required resynchronization. */
    replay(lastSeq: number, generation?: number): EventReplay;
}