import { JrnlExecutor } from "../utils/jrnlExecutor";
export interface TimeGroupStats {
    period: string;
    entryCount: number;
    wordCount: number;
}
export interface JournalStatistics {
    totalEntries: number;
    totalWords: number;
    averageWordsPerEntry: number;
    timeGrouping?: TimeGroupStats[];
    topTags?: Array<{
        tag: string;
        count: number;
    }>;
}
export declare function getStatistics(journal: string | undefined, timeGrouping: string | undefined, includeTopTags: boolean, executor: JrnlExecutor): Promise<{
    statistics: JournalStatistics;
}>;