code: def process_status(self, helper, session, check):
          process a single status"""
          snmp_result_status = helper.get_snmp_value(session, helper, DEVICE_GLOBAL_OIDS['oid_' + check])
  
          if check == "system_lcd":
              helper.update_status(helper, normal_check("global", snmp_result_status, "LCD status"))
          elif check == "global_storage":
              helper.update_status(helper, normal_check("global", snmp_result_status, "Storage status"))
          elif check == "system_power":
              helper.update_status(helper, self.check_system_power_status(snmp_result_status))
          elif check == "global_system":
              helper.update_status(helper,
                                   normal_check("global", snmp_result_status, "Device status"))
docs: process a single status