How do I add codes to Atlas?

Excuse me, could you elaborate on the process of adding codes to Atlas? Are you referring to a specific programming language or platform? Perhaps you're working with a blockchain-based system and want to integrate smart contracts or other code snippets. Could you provide more context about your project or the type of codes you intend to add? This will help me offer a more accurate and targeted response. Additionally, if there are any specific requirements or limitations you're working with, please let me know.