4. I/O and Serialization¶ File I/O, networking, URI parsing, terminal output, and binary serialization. 4.1. HTTP and WebSocket library (libhv) 4.2. High-level HTTP and WebSocket wrappers 4.3. URI manipulation library based on UriParser 4.4. ANSI terminal color and style helpers 4.5. General purpose serialization 4.6. Command-line utilities