code: def test_unary_ops(self):
      def f(a):
          return ~a, -a, +a
  
      tr = self.transform(f, logical_expressions)
  
      self.assertEqual(tr(1), (-2, -1, 1))
  
file_path: DALI/dali/test/python/autograph/converters/test_logical_expressions.py
imports: from nvidia.dali._autograph.converters import logical_expressions
  from nvidia.dali._autograph.core import converter_testing
label_desc: Use image node_id 5 for calling the LogicalExpressionTest obj's underlying member method code with example usage: obj.test_unary_ops() and returns: unknown,  unknown,  unknown