import type { FeatureFlagCustomFilterValidatorOptions, FeatureFlagClientFilter, FeatureFlagTargetingFilter, FeatureFlagHandleRollout } from "../types.js";
export declare function checkIsTargetingClientFilter(filter: FeatureFlagClientFilter): filter is FeatureFlagTargetingFilter;
export declare function validateFeatureFlagTargetingFilter(filter: FeatureFlagTargetingFilter, options: FeatureFlagCustomFilterValidatorOptions, handleRollout?: FeatureFlagHandleRollout): Promise<boolean>;