code: def objective(self, a):
      # an objective function with roots at 3, 10, 50
      return abs(np.poly1d([1, -63, 680, -1500])(a))
  
file_path: hyperopt/hyperopt/tests/unit/test_randint.py
imports: import unittest
  from functools import partial
  import numpy
  from hyperopt import hp, Trials, fmin, rand, tpe
  import hyperopt.pyll.stochastic
label_desc: Use image node_id 2 for calling the TestSimpleFMin obj's underlying member method code with example usage: obj.objective(a) and returns: abs