Import file with python

Hello,
I’m trying to create a little expression that will load a json file with the SelectPointPairs node.

The file name field populates correctly based on frame range, but is there a way I can force an import?
I thought it might be something like SelectPointPairs.import(), but that doesn’t seem to work.

Thanks

I apologize, I realized if I change source from User Input to File in the node, it will take care of hitting the import for me.

Problem solved!