The provided code snippet is a JavaScript module designed to interact with the KernelSU's module WebUI API. It demonstrates how to list all available functions within the ksu object and write them to a text file on the device. The script uses a checkbox to control whether the logging should be performed. If checked, it executes a command that outputs the keys of the ksu object to a file named ksu_keys.txt in the /data/local/tmp/ directory. This can be useful for debugging or exploring the capabilities of the KernelSU module WebUI API. The script also includes a toast notification to confirm that the operation has been completed successfully. The use of ksu.exec wrapped in a Promise allows for asynchronous execution of commands, which is essential for non-blocking operations in web applications.