export interface RetrievalLabel {
    resultId: string;
    relevance: number;
    current: boolean;
}
export interface RetrievalMetrics {
    recallAtK: number;
    precisionAtK: number;
    mrr: number;
    ndcg: number;
    exactSymbolHitRate: number;
    relevantFileHitRate: number;
    staleResultRate: number;
    duplicateResultRate: number;
    contextTokenEfficiency: number;
    revalidationSuccessRate: number;
}
export declare function calculateRetrievalMetrics(input: {
    results: RetrievalLabel[];
    relevantResultIds: string[];
    relevantSymbolIds?: string[];
    returnedSymbolIds?: string[];
    relevantFileIds?: string[];
    returnedFileIds?: string[];
    contextTokens?: number;
    revalidatedResultIds?: string[];
    k: number;
}): RetrievalMetrics;
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