export type MemoryLifecycleStatus = 'active' | 'superseded' | 'dropped';
export interface MemoryLifecycleState {
    status: MemoryLifecycleStatus;
    supersededBy: string | null;
}
export declare function activeLifecycleState(): {
    status: 'active';
    supersededBy: null;
};
export declare function droppedLifecycleState(): {
    status: 'dropped';
    supersededBy: null;
};
export declare function supersededLifecycleState(supersededBy: string): {
    status: 'superseded';
    supersededBy: string;
};
export declare function markLifecycleActive(entry: MemoryLifecycleState): void;
export declare function markLifecycleDropped(entry: MemoryLifecycleState): void;
export declare function markLifecycleSuperseded(entry: MemoryLifecycleState, supersededBy: string): void;
export declare function uniqueStrings(values: Iterable<string>): string[];
export declare function normalizeFlatReflectionActions<TInput extends {
    supersedes: string[];
}, TOutput extends {
    supersedes: string[];
}>(opts: {
    activeIds: Iterable<string>;
    drop: string[];
    merge: TInput[];
    normalizeMerge: (entry: TInput, supersedes: string[]) => TOutput | null;
}): {
    drop: string[];
    merge: TOutput[];
};