/**
 * Interface for metrics collection
 */
export interface SummarizationMetrics {
    originalTokens: number;
    summaryTokens: number;
    compressionRatio: number;
    latency: number;
}
export interface IMetrics {
    /**
     * Record a summarization operation
     */
    recordSummarization(metrics: SummarizationMetrics): void;
    /**
     * Get summarization statistics
     */
    getSummarizationStats?(): {
        totalSummarizations: number;
        averageCompressionRatio: number;
        totalTokensSaved: number;
        averageLatency: number;
    };
}
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