code: def setUp(self):
      self.listing_file = Errors.listing_file
      self.echo_file = Errors.echo_file
      Errors.listing_file = Errors.echo_file = None
  
imports: from __future__ import absolute_import
  import os
  import unittest
  import tempfile
  from .Compiler import Errors
  from .CodeWriter import CodeWriter
  from .Compiler.TreeFragment import TreeFragment, strip_common_indent
  from .Compiler.Visitor import TreeVisitor, VisitorTransform
  from .Compiler import TreePath
label_desc: Use image node_id 1 for calling the CythonTest obj's underlying member method code with example usage: obj.setUp() without return types