import type { WidgetConfig } from '../../index';
export declare class ConfigManager {
    private config;
    private readonly defaultConfig;
    constructor(userConfig?: WidgetConfig);
    get<K extends keyof Required<WidgetConfig>>(key: K): Required<WidgetConfig>[K];
    set<K extends keyof Required<WidgetConfig>>(key: K, value: Required<WidgetConfig>[K]): void;
    getAll(): Required<WidgetConfig>;
    update(updates: Partial<WidgetConfig>): void;
    private validateConfig;
    reset(): void;
    export(): string;
    isDefault(): boolean;
}
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