So, let'e say we have a simple python class called Model:

class Model: 
 def __init__(self): 
    pass
 def solver(self,Vf,Vf_dot,p,p_dot,h_1,h_2):
   h1_dot = ... 
   h2_dot=...    
 return  [h1_dot,h2_dot]

What I want to do is to separate this class neatly and when I create ROS2 packages on the side I can call this class create an instance and use it for my application. Is there any elegant way to do it?