import { CheckResult } from '../helpers';
import type { HealthIndicator } from '../types';
export interface FileSystemCheckOptions {
    /**
     * Absolute path to file or directory
     */
    path: string;
    /**
     * Access mode (see fs.access docs on nodejs website)
     */
    mode?: number;
}
/**
 * FileSystemIndicator checks if specified file or directory
 * exists and is accessible to the application
 *
 * TODO: Need to be tested! Especially modes.
 */
export declare abstract class FileSystemIndicator implements HealthIndicator {
    private path;
    private mode;
    constructor(options: FileSystemCheckOptions);
    /**
     * Проверяет, существует ли файл и есть ли к нему доступ
     */
    check(): Promise<CheckResult>;
}