code: def mark():
      
      branch = git.branch
      issue = jira.get_issue(branch)
      if not issue:
          return
      worklogs = jira.get_worklog(issue)
  
      marked = False
      if worklogs:
          # If we have worklogs, change the updated time of the last log to the mark
          marked = jira.touch_last_worklog(issue)
          mark_time = datetime.datetime.now(dateutil.tz.tzlocal()).strftime("%I:%M %p")
          print "Set mark at %s on %s by touching last work log" % (mark_time, branch)
      else:
          # If we don't have worklogs, mark the issue as in progress if that is an available transition
          jira.workflow_transition(issue, 'Open')
          marked = jira.workflow_transition(issue, 'In Progress')
          mark_time = datetime.datetime.now(dateutil.tz.tzlocal()).strftime("%I:%M %p")
          print 'Set mark at %s on %s by changing status to "In Progress"' % (mark_time, branch)
  
      if not marked:
          print "ERROR: Issue %s is has a status of %s and has no worklogs.  You must log some time or re-open the issue to proceed." % \
              (branch, issue.fields.status.name)
docs: Mark the start time for active work on an issue