class_docstr: This is a decorator class used later to construct nice names
code: def __call__(self, *args, **kwargs):
      def __repr__():
          s = self.f.__doc__.replace(
              "alpha", "%.4f" % kwargs["alpha"]
          ).replace("beta", "%.4f" % kwargs["beta"])
          return s
  
      self.__doc__ = __repr__()
      self.__repr__ = __repr__
      self.__str__ = __repr__
      return self.f(*args, **kwargs)
  
imports: import numpy
  import pandas
  from scipy import stats
  from scipy.optimize import newton
  from scipy.integrate import cumtrapz
label_desc: Use image node_id 2 for calling the coeff_func obj's underlying member method code with example usage: obj.__call__() and returns: self, s