class_docstr: Statistical Power calculations, Base Class
  
  so far this could all be class methods
class_docstr_tok: ["Statistical","Power","calculations",",","Base","Class","so","far","this","could","all","be","class","methods"]
code: def power(self, *args, **kwds):
      raise NotImplementedError
  
imports: import warnings
  import numpy
  from scipy import stats, optimize, special
  from statsmodels.tools.rootfinding import brentq_expanding
label_desc: Use image node_id 2 for calling the Power obj's underlying member method code with example usage: obj.power() without return types