export type RfmThresholdRowLike = {
    kind: 'r' | 'f' | string;
    score: number;
    min_value: number;
    max_value: number;
};
export type RfmRecencyDefinition = {
    within_days: number;
    exclude_within_days?: number | null;
};
export type RfmFrequencyDefinition = {
    op: string;
    value: number;
    value2?: number | null;
};
export type RfmSegmentDefinition = {
    segment_key: string;
    segment_name: string;
    window_days: number;
    recency: RfmRecencyDefinition;
    frequency: RfmFrequencyDefinition;
    criteria: any;
};
type ScoreRange = {
    minScore: number;
    maxScore: number;
};
export declare class RfmSegmentBuilder {
    static getSegmentScoreRanges(segmentKey: string): {
        r: ScoreRange;
        f: ScoreRange;
    } | null;
    static getSegmentName(segmentKey: string): string;
    static clampInt(n: number, min: number, max: number): number;
    static buildDefinition(params: {
        rfEventName: string;
        windowDays: number;
        segmentKey: string;
        thresholds: RfmThresholdRowLike[];
        filterCriteria?: any | null;
    }): RfmSegmentDefinition;
}
export {};
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