code: def testRealMatrixPoolMultipleLabels(self):
      rows = 2
      cols = 2
      expectedMat1 = zeros((rows, cols))
      for i in range(rows):
          for j in range(cols):
              expectedMat1[i][j] = i * rows + j
      expectedMat2 = expectedMat1 * 5
  
      p = Pool()
      p.add("foo.bar", expectedMat1)
      p.add("bar.foo", expectedMat2)
  
      self.assertEqualMatrix(p["foo.bar"], [expectedMat1])
      self.assertEqualMatrix(p["bar.foo"], [expectedMat2])
  
imports: from essentia_test import *
label_desc: Use image node_id 27 for calling the TestPool obj's underlying member method code with example usage: obj.testRealMatrixPoolMultipleLabels() without return types