code: def testSine(self):
      from numpy import sin, sqrt, pi
  
      size = 1000
      sine = [sin(440.0 * 2.0 * pi * i / size) for i in range(size)]
      self.assertAlmostEqual(RMS()(sine), 1.0 / sqrt(2.0), 1e-6)
  
imports: from essentia_test import *
label_desc: Use image node_id 4 for calling the TestRMS obj's underlying member method code with example usage: obj.testSine() without return types