kaxil commented on a change in pull request #10025:
URL: https://github.com/apache/airflow/pull/10025#discussion_r463206108



##########
File path: airflow/providers/amazon/aws/operators/athena.py
##########
@@ -73,19 +83,17 @@ def __init__(  # pylint: disable=too-many-arguments
         self.result_configuration = result_configuration or {}
         self.sleep_time = sleep_time
         self.max_tries = max_tries
-        self.query_execution_id = None
-        self.hook = None
+        self.query_execution_id = None  # type: Optional[str]
 
-    def get_hook(self):
+    @cached_property
+    def hook(self) -> AWSAthenaHook:
         """Create and return an AWSAthenaHook."""
         return AWSAthenaHook(self.aws_conn_id, sleep_time=self.sleep_time)
 
-    def execute(self, context):
+    def execute(self, context: Dict[Any, Any]) -> Optional[str]:

Review comment:
       ```suggestion
       def execute(self, context: dict) -> Optional[str]:
   ```
   
   since we don't have any specific hints inside Dict[Any, Any]
   
   




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