def METHOD_NAME(self):
    """
    Retrieves the presence of the device
    Returns:
        bool: True if device is present, False if not
    """
    attr_path = HWMON_DIR + self.fan_presence_attr
    attr_rv = self.__get_attr_value(attr_path)
    if (attr_rv != 'ERR'):
        if (attr_rv == '1'):
            return True
        else:
            return False
    return None