code: def get_commands_from_commanddict(commanddict):
    
    if not commanddict:
      return []
  
    commands = []
    for command in commanddict:
      has_user_argument = False
      subcommands = get_commands_from_commanddict(commanddict[command]['children'])
      if subcommands:
        for subcommand in subcommands:
          commands.append(command + " " + subcommand)
      else:
        commands.append(command)
    return commands
docs: <Purpose>
      Extracts the commands that are contained in the command dictionary.
      The arguments of these commands are not included.
  
    <Arguments>
      commanddict: A command dictionary in the format specified in
        seash_dictionary.
  
    <Exceptions>
      None
  
    <Side Effects>
      None
  
    <Return>
      A list of commands that are in the commanddict.