import { Callbacks } from "../../callbacks/manager.js";
import { DocumentInterface } from "../../documents/document.js";
/**
 * Base Document Compression class. All compressors should extend this class.
 */
export declare abstract class BaseDocumentCompressor {
    /**
     * Abstract method that must be implemented by any class that extends
     * `BaseDocumentCompressor`. This method takes an array of `Document`
     * objects and a query string as parameters and returns a Promise that
     * resolves with an array of compressed `Document` objects.
     * @param documents An array of `Document` objects to be compressed.
     * @param query A query string.
     * @returns A Promise that resolves with an array of compressed `Document` objects.
     */
    abstract compressDocuments(documents: DocumentInterface[], query: string, callbacks?: Callbacks): Promise<DocumentInterface[]>;
    static isBaseDocumentCompressor(x: any): x is BaseDocumentCompressor;
}