code: def test_wrap_offagain(self):
      t = self.run_pipeline(
          [NormalizeTree(None)],
          """
              x
              y
              if z:
                  x
          """,
      )
      self.assertLines(
          """
  (root): StatListNode
    stats[0]: ExprStatNode
      expr: NameNode
    stats[1]: ExprStatNode
      expr: NameNode
    stats[2]: IfStatNode
      if_clauses[0]: IfClauseNode
        condition: NameNode
        body: StatListNode
          stats[0]: ExprStatNode
            expr: NameNode
  """,
          self.treetypes(t),
      )
  
imports: import os.path
  import unittest
  from Cython.TestUtils import TransformTest
  from Cython.Compiler.ParseTreeTransforms import *
  from Cython.Compiler.ParseTreeTransforms import _calculate_pickle_checksums
  from Cython.Compiler.Nodes import *
  from Cython.Compiler import Main, Symtab
label_desc: Use image node_id 5 for calling the TestNormalizeTree obj's underlying member method code with example usage: obj.test_wrap_offagain() without return types