import { Vault, VaultOptions } from '../../../vault';
import { Level } from '../../../level';
import { Format } from '../../../format';
import { Log } from '../../../log';
export interface ConsoleVaultOptions extends VaultOptions {
    level: Level;
    format: Format;
    directory: string;
    fileName: string;
    useRotation: boolean;
}
export declare class FileVault extends Vault {
    private readonly directory;
    private readonly fileName;
    private readonly useRotation;
    private fileStream;
    private filePath;
    constructor(options: ConsoleVaultOptions);
    private setupFileStream;
    private getFilePath;
    private getDateSuffix;
    private getFormattedDate;
    store(log: Log): void;
    private shouldRotateFile;
    private rotateLogFile;
    private closeFileStreamIfOpen;
    private writeToFile;
    private addNewlineSuffixIfNeeded;
}