import Database from 'better-sqlite3';
import { MigrateMaps } from './tree.js';
export interface Decomposition {
    sessionsReconstructed: number;
    unattributedSessions: number;
    eventsWritten: number;
    skippedTwins: string[];
    emptyORoots: string[];
    oNodeToLoc: Record<string, {
        session_id: string;
        seq: number | null;
    }>;
}
export declare function decomposeORoots(v1: Database.Database, v2: Database.Database, maps: MigrateMaps): Decomposition;