export declare class RAGRetrievalChunkingFormat {
        chunkSize(chunkSize?: number): RAGRetrievalChunkingFormat
        chunkUnit(chunkUnit?: string): RAGRetrievalChunkingFormat
        expandedSnippetSize(expandedSnippetSize?: number): RAGRetrievalChunkingFormat
        expansionStrategy(expansionStrategy?: string): RAGRetrievalChunkingFormat
        maxPassagesPerDoc(maxPassagesPerDoc?: number): RAGRetrievalChunkingFormat
        mode(mode?: string): RAGRetrievalChunkingFormat
        snippetExpansionCount(snippetExpansionCount?: number): RAGRetrievalChunkingFormat
        constructor()

}