code: def test_live_in_deletion(self):
      def test_fn(x, y, a):
          for _ in a:
              if x:
                  del y
              else:
                  y = 0
  
      node = self._parse_and_analyze(test_fn)
      fn_body = node.body
  
      self.assertHasLiveIn(fn_body[0], ("a", "x", "y"))
  
imports: from tensorflow.python.autograph.pyct import anno
  from tensorflow.python.autograph.pyct import cfg
  from tensorflow.python.autograph.pyct import naming
  from tensorflow.python.autograph.pyct import parser
  from tensorflow.python.autograph.pyct import qual_names
  from tensorflow.python.autograph.pyct import transformer
  from tensorflow.python.autograph.pyct.static_analysis import activity
  from tensorflow.python.autograph.pyct.static_analysis import liveness
  from tensorflow.python.autograph.pyct.static_analysis import reaching_fndefs
  from tensorflow.python.platform import test
label_desc: Use image node_id 26 for calling the LivenessAnalyzerTest obj's underlying member method code with example usage: obj.test_live_in_deletion() without return types