export interface AtomicWriteOptions {
    encoding?: BufferEncoding;
    mode?: number;
    tmpfileCreated?: (tmpfile: string) => void;
}
/**
 * Atomically writes data to a file using the temp-file-and-rename strategy.
 * This ensures that the file is either fully written or not written at all,
 * preventing partial writes and corruption.
 *
 * @param filePath - The path to the file to write
 * @param data - The data to write (string or Buffer)
 * @param options - Optional write options
 */
export declare function writeFileAtomic(filePath: string, data: string | Buffer, options?: AtomicWriteOptions): Promise<void>;
/**
 * Synchronously writes data to a file atomically.
 * Not recommended for large files or performance-critical paths.
 */
export declare function writeFileAtomicSync(filePath: string, data: string | Buffer, options?: Omit<AtomicWriteOptions, 'tmpfileCreated'>): void;
export default writeFileAtomic;
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