diff --git a/datastore/datastore.nim b/datastore/datastore.nim
index 169349a..98b9520 100644
--- a/datastore/datastore.nim
+++ b/datastore/datastore.nim
@@ -13,32 +13,32 @@ push: {.upraises: [].}
 type
   BatchEntry* = tuple[key: Key, data: seq[byte]]
 
-method has*(self: Datastore, key: Key): Future[?!bool] {.base, locks: "unknown".} =
+method has*(self: Datastore, key: Key): Future[?!bool] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-method delete*(self: Datastore, key: Key): Future[?!void] {.base, locks: "unknown".} =
+method delete*(self: Datastore, key: Key): Future[?!void] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-method delete*(self: Datastore, keys: seq[Key]): Future[?!void] {.base, locks: "unknown".} =
+method delete*(self: Datastore, keys: seq[Key]): Future[?!void] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-method get*(self: Datastore, key: Key): Future[?!seq[byte]] {.base, locks: "unknown".} =
+method get*(self: Datastore, key: Key): Future[?!seq[byte]] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-method put*(self: Datastore, key: Key, data: seq[byte]): Future[?!void] {.base, locks: "unknown".} =
+method put*(self: Datastore, key: Key, data: seq[byte]): Future[?!void] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-method put*(self: Datastore, batch: seq[BatchEntry]): Future[?!void] {.base, locks: "unknown".} =
+method put*(self: Datastore, batch: seq[BatchEntry]): Future[?!void] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-method close*(self: Datastore): Future[?!void] {.base, locks: "unknown".} =
+method close*(self: Datastore): Future[?!void] {.base, locks: "unknown", raises: [].} =
   raiseAssert("Not implemented!")
 
-# method query*(
-#   self: Datastore,
-#   query: Query): Future[?!QueryIter] {.base, gcsafe.} =
+method query*(
+  self: Datastore,
+  query: Query): Future[?!QueryIter] {.base, gcsafe, raises: [].} =
 
-#   raiseAssert("Not implemented!")
+  raiseAssert("Not implemented!")
 
-proc contains*(self: Datastore, key: Key): Future[bool] {.async.} =
+proc contains*(self: Datastore, key: Key): Future[bool] {.async, raises: [].} =
   return (await self.has(key)) |? false