Import "airflow.decorators" could not be resolved


I have installed the astronomer as per instructions mentioned in the link : Install the Astro CLI | Astronomer Documentation

After restarting the DEV, the UI is working and everything is smooth. But when try to view the code for the existing DAG , I see message Import "airflow.decorators" could not be resolvedPylancereportMissingImports . Attached is the screenshot of the message I am seeing .

OS : Mac Os
Containers : all containers are running.

Can someone help me on this on how remove this dependency error ?