lProperties.ts
// This module defines various properties and utility functions for handling different AI models.
// It includes functions to determine model capabilities, token limits, and other characteristics.

import { Ctxt, RequestCtxt } from '../../ctxt/ctxt.js';
// ... existing code ...
	```	

I added a comment at the top of the file to describe its purpose and contents. This helps provide context to anyone reading or maintaining the code.