FlexGui custom buttons

Hi,
I am working on a FlexGui for a waterjet and I want to have some custom buttons that call hal and emc functions. 
I see I can import a python module and do the "from functools import partial" to get the parent, but does the parent also pass access to hal and emc?

I am trying to make a custom stop button that will turn off some hal output pins with hal.set_p() and then call emc.abort() in python so it will turn off the jet and sand when pressed. I also need to make one that will pause by setting the hal pins off and setting the motion.adaptivefeed to 0.

Any help would be appreciated