old_contents: #    vytree.__init__: package init file.
  #
  #    Copyright (C) 2014 VyOS Development Group <maintainers@vyos.net>
  #
  #    This library is free software; you can redistribute it and/or
  #    modify it under the terms of the GNU Lesser General Public
  #    License as published by the Free Software Foundation; either
  #    version 2.1 of the License, or (at your option) any later version.
  #
  #    This library is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  #    Lesser General Public License for more details.
  #
  #    You should have received a copy of the GNU Lesser General Public
  #    License along with this library; if not, write to the Free Software
  #    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
  #    USA
  
  
  from vytree.node import (
      Node,
      ChildNotFoundError,
      ChildAlreadyExistsError,
      )
  
  from vytree.config_node import ConfigNode
  
  from vytree.reference_node import ReferenceNode
  
  from vytree.reference_tree_loader import ReferenceTreeLoader
  
new_contents: #    vytree.__init__: package init file.
  #
  #    Copyright (C) 2014 VyOS Development Group <maintainers@vyos.net>
  #
  #    This library is free software; you can redistribute it and/or
  #    modify it under the terms of the GNU Lesser General Public
  #    License as published by the Free Software Foundation; either
  #    version 2.1 of the License, or (at your option) any later version.
  #
  #    This library is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  #    Lesser General Public License for more details.
  #
  #    You should have received a copy of the GNU Lesser General Public
  #    License along with this library; if not, write to the Free Software
  #    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
  #    USA
  
  
  from vytree.node import (
      Node,
      ChildNotFoundError,
      ChildAlreadyExistsError,
      )
  
  from vytree.config_node import ConfigNode
  
  
subject: Remove referencetree-related imports from the top level vytree package.