gh workflow run question

[rockey5520]

How do I use gh workflow run to run a workflow for a specific branch ? In my workflow file, i have included workflow_dispatch: and UI gives a visual dropdown option to run the action for each branch available on the repo

[mislav]

$ gh help workflow run
...
FLAGS
...
  -r, --ref string            The branch or tag name which contains the version of the workflow file you'd like to run
...
EXAMPLES
...
  # Run the workflow file 'triage.yml' at a specified ref
  $ gh workflow run triage.yml --ref my-branch