code: def Bennet5(b, x, y=0):
      b = read_params(b)
      return y - b[0] * (b[1] + x) ** (-1 / b[2])
  
imports: import os
  from numpy import arctan, array, cos, exp, log, sin
  from lmfit import Parameters
label_desc: Use image node_id 2 for calling a global function with example usage: Bennet5(b, x, y) and returns: unknown