- Removed the async_client attribute and its related initialization logic.
- Consolidated API key and headers setup into the constructor for clarity.
- Enhanced code readability by eliminating redundant code and improving structure.

- Replaced async_client with aiohttp.ClientSession for making asynchronous HTTP requests.
- Added headers for API requests to enhance security and compatibility.
- Simplified error handling by removing checks for async_client initialization.
- Improved code readability and maintainability by consolidating request logic.