code: def testRegressionStandard(self):
      classification_head = TensorflowPredict2D(
          graphFilename=self.head_model_name,
          input=self.head_input_name,
          output=self.head_output_name,
      )
  
      found = classification_head(self.embeddings)
  
      self.assertAlmostEqualMatrix(found, self.expected)
  
file_path: essentia/test/src/unittests/machinelearning/test_tensorflowpredict2d.py
imports: from essentia_test import *
  import essentia.streaming
label_desc: Use image node_id 3 for calling the TestTensorFlowPredict2D obj's underlying member method code with example usage: obj.testRegressionStandard() without return types