Method writeFileSync

packages/shell/src/fs/in-memory-fs.ts:141–154

(
    path: string,
    content: FileContent,
    options?: WriteFileOptions | BufferEncoding,
    metadata?: { mode?: number; mtime?: Date }
  )

  // ── Sync helpers (used by consumers and constructor) ────────────────

  writeFileSync(
    path: string,
    content: FileContent,
    options?: WriteFileOptions | BufferEncoding,
    metadata?: { mode?: number; mtime?: Date }
  ): void {
    this.insertContent(
      path,
      content,
      getEncoding(options),
      metadata?.mode,
      metadata?.mtime
    );
  }

  writeFileLazy(
    path: string,