Bring SNMPServerClient back for compatibility with older exporter

Author: NickCao

packages/jumpstarter-driver-snmp/jumpstarter_driver_snmp/client.py

@@ -0,0 +1,10 @@
+from dataclasses import dataclass
+
+from jumpstarter_driver_power.client import PowerClient
+
+
+@dataclass(kw_only=True)
+class SNMPServerClient(PowerClient):
+    """Client interface for SNMP Power Control"""
+
+    pass

packages/jumpstarter-driver-snmp/jumpstarter_driver_snmp/driver.py

@@ -115,10 +115,6 @@ def _setup_snmp(self):
 
         return snmp_engine
 
-    @classmethod
-    def client(cls) -> str:
-        return "jumpstarter_driver_snmp.client.SNMPServerClient"
-
     def _create_snmp_callback(self, result: Dict[str, Any], response_received: Event):
         def callback(snmpEngine, sendRequestHandle, errorIndication, errorStatus, errorIndex, varBinds, cbCtx):
             self.logger.debug(f"Callback {errorIndication} {errorStatus} {errorIndex} {varBinds}")