import { IBinaryData, IBinaryKeyData, INodeExecutionData } from 'n8n-workflow/dist/Interfaces';
import type { Readable } from 'stream';
/**
 * Recursively adds files from a directory to the binary data of a result object.
 * Traverses through the directory and its subdirectories, reading files
 * and preparing their binary data to include in the provided result object.
 *
 * @param {string} dir - The directory path to process.
 * @param {string} workDir - The base working directory, used to generate relative file paths.
 * @param {INodeExecutionData & { binary: IBinaryKeyData }} result - The result object to which binary data of files will be added.
 * @param {function} prepareBinaryData - A function that prepares binary data from a file's buffer, file path, and MIME type.
 * It returns a Promise that resolves to a prepared IBinaryData object.
 * @return {Promise<void>} A promise that resolves when all files in the directory and its subdirectories have been processed and their binary data added to the result.
 */
export declare function addFilesToResults(dir: string, workDir: string, result: INodeExecutionData & {
    binary: IBinaryKeyData;
}, prepareBinaryData: (binaryData: Buffer | Readable, filePath?: string, mimeType?: string) => Promise<IBinaryData>): Promise<void>;