code: def testOne(self):
      (
          bpm1,
          weight1,
          spread1,
          bpm2,
          weight2,
          spread2,
          histogram,
      ) = BpmHistogramDescriptors()([0.5])
      self.assertEqual(bpm1, 120)
      self.assertEqual(weight1, 1)
      self.assertEqual(spread1, 0)
      self.assertEqual(bpm2, 0)
      self.assertEqual(weight2, 0)
      self.assertEqual(spread2, 0)
      self.assertEqualVector(
          histogram,
          [0.0] * 120 + [1.0] + [0.0] * (len(histogram) - 121),
      )
  
file_path: essentia/test/src/unittests/rhythm/test_bpmhistogramdescriptors.py
imports: from essentia_test import *
label_desc: Use image node_id 3 for calling the TestBpmHistogramDescriptors obj's underlying member method code with example usage: obj.testOne() without return types