/**
 * Screenshot storage service for browser-use agents.
 *
 * This service handles storing screenshots to disk and retrieving them as base64 strings.
 * Screenshots are saved in a dedicated screenshots subdirectory within the agent's working directory.
 */
/**
 * Simple screenshot storage service that saves screenshots to disk
 */
export declare class ScreenshotService {
    private agentDirectory;
    private screenshotsDir;
    /**
     * Initialize with agent directory path
     * @param agentDirectory Path to the agent's working directory
     */
    constructor(agentDirectory: string);
    /**
     * Create the screenshots directory if it doesn't exist
     */
    private initializeDirectory;
    /**
     * Store screenshot to disk and return the full path as string
     * @param screenshotB64 Base64 encoded screenshot data
     * @param stepNumber Current step number for filename
     * @returns Promise resolving to the full file path
     */
    storeScreenshot(screenshotB64: string, stepNumber: number): Promise<string>;
    /**
     * Load screenshot from disk path and return as base64
     * @param screenshotPath Full path to the screenshot file
     * @returns Promise resolving to base64 string or null if file doesn't exist
     */
    getScreenshot(screenshotPath: string): Promise<string | null>;
    /**
     * Get the screenshots directory path
     * @returns The full path to the screenshots directory
     */
    getScreenshotsDirectory(): string;
    /**
     * List all screenshot files in the directory
     * @returns Promise resolving to array of screenshot filenames
     */
    listScreenshots(): Promise<string[]>;
    /**
     * Delete all screenshots in the directory
     * @returns Promise that resolves when cleanup is complete
     */
    cleanup(): Promise<void>;
    /**
     * Get the size of the screenshots directory in bytes
     * @returns Promise resolving to total size in bytes
     */
    getDirectorySize(): Promise<number>;
}
export default ScreenshotService;
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