old_contents: from __future__ import absolute_import, division, print_function, unicode_literals
  
  def leafs(table):
    values = {}
    def recurse(item, path):
      if isinstance(item, dict):
        for key, value in six.iteritems(item):
          recurse(value, path + (key,))
      else:
        values[path] = item
    recurse(table, ())
    return values
  
new_contents: from __future__ import absolute_import, division, print_function, unicode_literals
  
  def leafs(table):
    values = {}
    def recurse(item, path):
      if isinstance(item, dict):
        for key, value in item.items():
          recurse(value, path + (key,))
      else:
        values[path] = item
    recurse(table, ())
    return values
  
subject: Fix unused code paths.