import type { EventFeatureBaseConfig } from "./feature.base";
import { type EventRewardItemConfig } from "./reward";
declare const featureType: "referral";
export interface FeatureReferralConfig {
    /** 允许返回的最近被邀请人最大数量 */
    max_recent_invitees: number;
    /** 分级奖励配置 */
    referral_tiers?: FeatureReferralTierItem[];
}
export interface FeatureReferralTierItem {
    /** 邀请数量要求 */
    required_invitees: number;
    /** 奖励 */
    rewards: EventRewardItemConfig[];
}
export declare const FeatureReferralTierItemValidator: import("@seayoo-web/validator").ObjectValidator<FeatureReferralTierItem, false, false>;
export type EventFeatureConfigOfReferral = EventFeatureBaseConfig & {
    feature_type: typeof featureType;
    config: FeatureReferralConfig;
};
export declare const EventFeatureConfigOfReferralValidator: import("@seayoo-web/validator").ObjectValidator<EventFeatureConfigOfReferral, false, false>;
export {};