code: def testSynthetiseDC(self):
      x = essentia.array(np.ones(2**12))
  
      CQ, CQDC, DCNF = NSGConstantQ(inputSize=2**12)(x)
      CQList = list(CQ)
      for i in range(len(CQList)):
          CQList[i] = list(CQList[i])
  
      y = NSGIConstantQ(inputSize=2**12)(CQList, CQDC, DCNF)
  
      self.assertAlmostEqualVectorFixedPrecision(x, y, 1)
  
file_path: essentia/test/src/unittests/standard/test_nsgiconstantq.py
imports: from essentia_test import *
  import essentia.standard
  import numpy
label_desc: Use image node_id 4 for calling the TestNSGIConstantQ obj's underlying member method code with example usage: obj.testSynthetiseDC() without return types