message: update init_commands docstring
diff: @@ -22,12 +22,10 @@ class Session(object):
  def init_commands(self, commands):
  """
  - Expects a list of tuples of form (depth, command_text)
  - where depth is depth of the element in command tree.
  -
  - The list's item order corresponds to DFS traversal of a command tree.
  -
  - Returns a dictionary that reconstructs a command tree.
  + Given a list of tuples of form (depth, command_text)
  + that represents a DFS traversal of a command tree,
  + updates self.commands with a dictionary that holds
  + a command tree.
  """
  def children(commands, level=0, base_index=0):
  return [
  