code: def test_rmse(self):
      actual = asfloat(np.array([0, 1, 2, 3]))
      predicted = asfloat(np.array([3, 2, 1, 0]))
      self.assertAlmostEqual(
          asfloat(np.sqrt(5)),
          self.eval(objectives.rmse(actual, predicted)),
      )
  
file_path: neupy/tests/algorithms/gd/test_objectives.py
imports: import numpy
  from neupy.utils import asfloat
  from neupy.algorithms.gd import objectives
  from base import BaseTestCase
label_desc: Use image node_id 7 for calling the ErrorFuncTestCase obj's underlying member method code with example usage: obj.test_rmse() without return types