code: def testStdVsStreaming(self):
      from essentia.standard import Derivative as stdDerivative
  
      input = [5.0, 0.0, -1.0, 2.0, -3.0, 4.0]
      expected = [5.0, -5.0, -1.0, 3.0, -5.0, 7.0]
      self.assertEqualVector(stdDerivative()(input), expected)
  
imports: from essentia_test import *
  from essentia.streaming import Derivative
label_desc: Use image node_id 4 for calling the TestDerivative_Streaming obj's underlying member method code with example usage: obj.testStdVsStreaming() without return types