import { GardenNode } from '../types.js';
export declare class BrainGarden {
    private brain;
    private forgetting;
    private causal;
    constructor();
    snapshot(limit?: number): Promise<GardenNode[]>;
    /** Compact stats used by the dashboard widget. */
    stats(): Promise<{
        nodes: number;
        avgBloom: number;
        linkedFraction: number;
    }>;
    private kindFromCategory;
}
export declare function getBrainGarden(): BrainGarden;
export declare function resetBrainGardenForTests(): void;
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