add writer to set_dht_value, allow multiple open_dht_record

veilid-python/veilid/api.py

@@ -75,7 +75,7 @@ class RoutingContext(ABC):
 
     @abstractmethod
     async def set_dht_value(
-        self, key: types.TypedKey, subkey: types.ValueSubkey, data: bytes
+        self, key: types.TypedKey, subkey: types.ValueSubkey, data: bytes, writer: Optional[types.KeyPair]
     ) -> Optional[types.ValueData]:
         pass
 

veilid-python/veilid/json_api.py

@@ -626,7 +626,7 @@ class _JsonRoutingContext(RoutingContext):
         return None if ret is None else ValueData.from_json(ret)
 
     async def set_dht_value(
-        self, key: TypedKey, subkey: ValueSubkey, data: bytes
+        self, key: TypedKey, subkey: ValueSubkey, data: bytes, writer: Optional[KeyPair]
     ) -> Optional[ValueData]:
         ret = raise_api_result(
             await self.api.send_ndjson_request(
@@ -637,6 +637,7 @@ class _JsonRoutingContext(RoutingContext):
                 key=key,
                 subkey=subkey,
                 data=data,
+                writer=writer,
             )
         )
         return None if ret is None else ValueData.from_json(ret)

veilid-python/veilid/schema/Request.json

@@ -451,6 +451,12 @@
               "type": "integer",
               "format": "uint32",
               "minimum": 0.0
+            },
+            "writer": {
+              "type": [
+                "string",
+                "null"
+              ]
             }
           }
         },