import type { KsefClient, KsefClientConfig, KsefSessionState } from './types.js';
export interface SessionManagerOptions {
    renewThresholdMs?: number;
}
export declare class SessionManager {
    private readonly client;
    private readonly config;
    private session;
    private readonly renewThresholdMs;
    constructor(client: KsefClient, config: KsefClientConfig, opts?: SessionManagerOptions);
    ensure(): Promise<KsefSessionState>;
    close(): Promise<void>;
    get current(): KsefSessionState | null;
    get isActive(): boolean;
}
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