export interface RelationshipPairBucket {
    csvPath: string;
    rowCount: number;
}
export interface RelationshipPairBucketResult {
    relHeader: string;
    buckets: Map<string, RelationshipPairBucket>;
    skippedRels: number;
    totalValidRels: number;
}
export declare function bucketRelationshipLines(lines: string[], getNodeLabel: (id: string) => string): Promise<Map<string, string[]>>;
export declare function streamRelationshipPairBucketsFromCsv(params: {
    relCsvPath: string;
    csvDir: string;
    validTables: Set<string>;
    getNodeLabel: (nodeId: string) => string;
}): Promise<RelationshipPairBucketResult>;