import { FeatureFlagUser, ForgeFeatureFlagConfig } from './types';
export declare class FeatureFlags {
    private initialized;
    private evaluator;
    /**
     * Initialize the feature flags client
     */
    initialize(user: FeatureFlagUser, config?: ForgeFeatureFlagConfig): Promise<void>;
    /**
     * Check if a feature flag is enabled for the user
     */
    checkFlag(flagName: string, defaultValue?: boolean): boolean;
    /**
     * Shutdown the feature flags client
     */
    shutdown(): void;
    isInitialized(): boolean;
}
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