code: def test_lower_f_accepted(self, success):
      new_minres = OptimizeResult(success=success)
      new_minres.x = self.x0 + 1
      new_minres.fun = self.f0 - 1
  
      ret = self.storage.update(new_minres)
      minres = self.storage.get_lowest()
      assert (self.x0 != minres.x) == success  # can't use `is`
      assert (
          self.f0 != minres.fun
      ) == success  # left side is NumPy bool
      assert ret is success
  
imports: import copy
  from numpy.testing import assert_almost_equal, assert_equal, assert_, assert_allclose
  import pytest
  from pytest import raises
  import numpy
  from numpy import cos, sin
  from scipy.optimize import basinhopping, OptimizeResult
  from scipy.optimize._basinhopping import Storage, RandomDisplacement, Metropolis, AdaptiveStepsize
label_desc: Use image node_id 3 for calling the Test_Storage obj's underlying member method code with example usage: obj.test_lower_f_accepted(success) without return types