code: def testMatrixInt(self):
      input = array([[1, 2, 3, 4], [5, 6, 7, 8]])
      result = self.runNetwork(input)
      self.assertEqualMatrix(result, input)
  
file_path: essentia/test/src/unittests/streaming/test_vectorinput_streaming.py
imports: from essentia_test import *
label_desc: Use image node_id 9 for calling the TestVectorInput_Streaming obj's underlying member method code with example usage: obj.testMatrixInt() without return types