How to define local coordinate system and assign that system to node using python in hypermesh 2025?

I have written code to create system in the model. But the system is created randomly in the space. I want to define system according to user defined specific nodes (origin node, xaxis node, plane node).

And also how to know what are the methods available for an object and what are the default parameters available for a function?

code:

def run():
model = hm.Model()
sys = ent.System(model)
run()

Regards

Vishnu