How to add drivers to node group sockets using Python?

I am working on a bloom node group for the compositor and would like to create an add-on that allows me to easily add it to other Blender files. The problem is that the node group includes some drivers for certain sockets, and I want to know how to add these drivers using Python.

I have extracted the node group into Python code using this add-on (https://extensions.blender.org/add-ons/node-to-python/).

Could you please help me? I would really appreciate it.

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