export interface EvoFeatureGateOptions {
    root?: string;
    sessionId?: string;
}
export declare function isEvoFeatureEnabled(featureId: string, options?: EvoFeatureGateOptions): boolean;
export declare function guardEvoFeature(featureId: string, options?: EvoFeatureGateOptions): boolean;
export declare function createEvoFeatureHandler<Arguments extends readonly unknown[], Result>(featureId: string, handler: (...args: Arguments) => Result, options?: EvoFeatureGateOptions): (...args: Arguments) => Result | undefined;
/** @internal Used by the policy runtime to bind feature flags to one pinned session. */
export declare function activateEvoFeatureSession(enabledFeatures: readonly string[], options: EvoFeatureGateOptions & {
    sessionId: string;
}): () => void;
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