How to add label to GCP Cloud function using console ?

[RC1]

Hi folks , How to add label to GCP Cloud function using console ? I am not able to see labels section in the  Cloud function UI 

[comaro]

1) Go to your Cloud Functions screen.
2) Select a function by checking its checkbox.
3) The ‘Labels’ option will appear at the top. Click on it.

[yeshwant]

How to do this from firebase deploy --only functions:functionname command. I want to set git commit sha to a cloud function