docs: def kwargs_to_string(kwargs):
      """
      Given a set of kwargs, turns them into a string which can then be passed to a command.
      :param kwargs: kwargs from a function call.
      :return: outstr: A string, which is '' if no kwargs were given, and the kwargs in string format otherwise.
      """
      outstr = ''
      for arg in kwargs:
          outstr += ' -{} {}'.format(arg, kwargs[arg])
      return outstr