code: def codeToString(self, tree):
      return "\n".join(self.codeToLines(tree))
  
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 5 for calling the CythonTest obj's underlying member method code with example usage: obj.codeToString(tree) and returns: str