def METHOD_NAME(self):
    """
    Retrieves current temperature reading from thermal
    Returns:
        A float number of current temperature in Celsius up to nearest thousandth
        of one degree Celsius, e.g. 30.125
    """
    if not self.is_psu:
        temp_file = "temp{}_input".format(self.ss_index)
    else:
        temp_file = self.psu_hwmon_path + "psu_temp1_input"
    return self.__get_temp(temp_file)