Thank you for creating such a useful library.

A feature request I had was to incorporate the returning of Python dictionaries. The motivation for this is to enable iteration through parameters in Python without having to explicitly using full parameter names to access values.

I currently have a yaml file containing multiple sensor configs, rather than having to individually create a subscriber for each I want to have a generic register_sensors method that iterates through sensors and their configuration parameters in order to create subscriptions. To accomplish this I would like to have my parameters in a dictionary where nested parameter structure is respected.

self.param_listener = params.ParamListener(self)
self.param_dict = self.param_listener.get_params().to_dict()

Maybe this functionality already exists? I couldn't find it on an initial pass through the library.