def METHOD_NAME(self):
    """
    Retrieves the manufacturer id of the device
    Returns:
        string: Manufacturer Id of device
    """
    if self.is_psu_fan:
        device = "PSU{}".format(self.fans_psu_index)
        output = self.pddf_obj.get_attr_name_output(device, "psu_mfr_id")
    else:
        raise NotImplementedError
    if not output:
        return None
    mfr = output['status']
    # strip_non_ascii
    stripped = (c for c in mfr if 0 < ord(c) < 127)
    mfr = ''.join(stripped)
    return mfr.rstrip('\n')