change return types for asyncmy

Author: collerek

databases/backends/asyncmy.py

@@ -100,7 +100,7 @@ async def release(self) -> None:
         await self._database._pool.release(self._connection)
         self._connection = None
 
-    async def fetch_all(self, query: ClauseElement) -> typing.List[typing.Sequence]:
+    async def fetch_all(self, query: ClauseElement) -> typing.List[typing.Mapping]:
         assert self._connection is not None, "Connection is not acquired"
         query_str, args, context = self._compile(query)
         async with self._connection.cursor() as cursor:
@@ -121,7 +121,7 @@ async def fetch_all(self, query: ClauseElement) -> typing.List[typing.Sequence]:
             finally:
                 await cursor.close()
 
-    async def fetch_one(self, query: ClauseElement) -> typing.Optional[typing.Sequence]:
+    async def fetch_one(self, query: ClauseElement) -> typing.Optional[typing.Mapping]:
         assert self._connection is not None, "Connection is not acquired"
         query_str, args, context = self._compile(query)
         async with self._connection.cursor() as cursor: