code: def git_checkout(branch_name, create=False):
      # type: (str, bool) -> None
      
      log.info("Checking out <33>{}".format(branch_name))
      shell.run('git checkout {} {}'.format('-b' if create else '', branch_name))
docs: Checkout or create a given branch
  
      Args:
          branch_name (str):
              The name of the branch to checkout or create.
          create (bool):
              If set to **True** it will create the branch instead of checking it
              out.