def METHOD_NAME(self):
    """
    Returns information about this IOU device.
    :returns: formatted string
    """
    if self._settings["use_default_iou_values"]:
        memories_info = "default RAM and NVRAM values"
    else:
        memories_info = "{ram}MB RAM and {nvram}KB NVRAM".format(ram=self._settings["ram"],
                                                                 nvram=self._settings["nvram"])
    METHOD_NAME = """Device {name} is {state}