code: def testAbs(self):
      self.assertAlmostEqualVector(
          UnaryOperator(type="abs")(self.testInput),
          [1, 2, 3, 4, 3.4, 5.0008, 100034],
      )
  
imports: from essentia_test import *
label_desc: Use image node_id 3 for calling the TestUnaryOperator obj's underlying member method code with example usage: obj.testAbs() without return types