code: def start(name):
      # type: (str) -> None
      
      feature_name = 'feature/' + common.to_branch_name(name)
      develop = conf.get('git.devel_branch', 'develop')
  
      common.assert_on_branch(develop)
      common.git_checkout(feature_name, create=True)
docs: Start working on a new feature by branching off develop.
  
      This will create a new branch off develop called feature/<name>.
  
      Args:
          name (str):
              The name of the new feature.