export type BufferEncoding = "utf-8" | "utf8" | "ascii" | "latin1" | "binary" | "ucs2" | "ucs-2" | "utf16le" | "utf-16le";
/**
 * Operations surface for atomic writes. Mirrors the subset of
 * {@link WriteOperations} needed so that tests can stub the filesystem.
 */
export interface AtomicWriteOperations {
    writeFile: (absolutePath: string, data: string) => Promise<void>;
    rename: (oldPath: string, newPath: string) => Promise<void>;
    unlink: (absolutePath: string) => Promise<void>;
}
declare const defaultAtomicWriteOperations: AtomicWriteOperations;
/**
 * Write `content` to `absolutePath` atomically by first writing to a sibling
 * temp file in the same directory and then renaming it into place. `rename`
 * is atomic when source and destination live on the same filesystem, which is
 * guaranteed because the temp file is a sibling of the destination.
 *
 * If the temp write or rename fails, the temp file is best-effort removed so
 * no stale partial temp file is left behind. The original file (if any) is
 * never touched until the rename succeeds, so a failed write leaves the
 * existing file intact.
 *
 * @param absolutePath Final destination file path.
 * @param content      Text content to write.
 * @param encoding     Encoding for the temp write (defaults to "utf-8").
 * @param operations   Optional stub for tests; defaults to real `fs/promises`.
 */
export declare function atomicWriteFile(absolutePath: string, content: string, encoding?: BufferEncoding, operations?: AtomicWriteOperations): Promise<void>;
export { defaultAtomicWriteOperations };
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