add dunder all to query module

Author: vgvoleg

examples/query-service/basic_example.py

@@ -32,7 +32,7 @@ def callee(session):
 
         tx.begin()
 
-        tx.execute("""INSERT INTO example (key, value) VALUES (0033, "onepieceisreal");""")
+        tx.execute("""INSERT INTO example (key, value) VALUES (0055, "onepieceisreal");""")
 
         for result_set in tx.execute("""SELECT COUNT(*) FROM example;"""):
             print(f"rows: {str(result_set.rows)}")
@@ -52,7 +52,7 @@ def callee(session):
 
         tx.begin()
 
-        tx.execute("""INSERT INTO example (key, value) VALUES (0044, "onepieceisreal");""")
+        tx.execute("""INSERT INTO example (key, value) VALUES (0066, "onepieceisreal");""")
 
         for result_set in tx.execute("""SELECT COUNT(*) FROM example;"""):
             print(f"rows: {str(result_set.rows)}")

ydb/query/__init__.py

@@ -1,3 +1,12 @@
+__all__ = [
+    "QueryOnlineReadOnly",
+    "QuerySerializableReadWrite",
+    "QuerySnapshotReadOnly",
+    "QueryStaleReadOnly",
+    "QuerySessionPool",
+    "QueryClientSync"
+]
+
 from .base import (
     IQueryClient,
     SupportedDriverType,
@@ -7,13 +16,13 @@
 from .session import QuerySessionSync
 
 from .._grpc.grpcwrapper.ydb_query_public_types import (
-    QueryOnlineReadOnly,  # noqa
-    QuerySerializableReadWrite,  # noqa
-    QuerySnapshotReadOnly,  # noqa
-    QueryStaleReadOnly,  # noqa
+    QueryOnlineReadOnly,
+    QuerySerializableReadWrite,
+    QuerySnapshotReadOnly,
+    QueryStaleReadOnly,
 )
 
-from .pool import QuerySessionPool  # noqa
+from .pool import QuerySessionPool
 
 
 class QueryClientSync(IQueryClient):