Fix asynch

Author: xzkostyan

clickhouse_sqlalchemy/drivers/asynch/connector.py

@@ -1,10 +1,11 @@
 import asyncio
 
+from sqlalchemy.connectors.asyncio import AsyncAdapt_dbapi_cursor
 from sqlalchemy.engine.interfaces import AdaptedConnection
 from sqlalchemy.util.concurrency import await_only
 
 
-class AsyncAdapt_asynch_cursor:
+class AsyncAdapt_asynch_cursor(AsyncAdapt_dbapi_cursor):
     __slots__ = (
         '_adapt_connection',
         '_connection',
@@ -14,6 +15,7 @@ class AsyncAdapt_asynch_cursor:
     )
 
     def __init__(self, adapt_connection):
+        super().__init__(adapt_connection)
         self._adapt_connection = adapt_connection
         self._connection = adapt_connection._connection  # noqa
         self.await_ = adapt_connection.await_