import type { PersonaNode } from './types.js';
export interface LifecycleState {
    shortTerm: Record<string, number>;
    longTerm: Record<string, number>;
    lastUpdatedAt: number;
}
export declare class PersonaLifecycle {
    private shortTermWindow;
    private emaAlpha;
    constructor(shortTermWindow?: number, emaAlpha?: number);
    update(state: LifecycleState | undefined, node: PersonaNode, policy?: {
        shortTermWindow?: number;
        emaAlpha?: number;
        promoteThreshold?: number;
    }): LifecycleState;
}
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