old_contents: from lbutils import as_callable
  
  from lbworkflow import settings
  
  # wf_send_sms(users, mail_type, event, ext_ctx)
  # wf_send_mail(users, mail_type, event, ext_ctx)
  
  def wf_send_msg(users, msg_type, event=None, ext_ctx=None):
      if not users:
          return
  
      users = set(users)
      if event:  # ignore operator
          if event.user in users:
              users = users.remove(event.user)
  
      for send_msg in settings.WF_SEND_MSG_FUNCS:
          as_callable(send_msg)(users, msg_type, event, ext_ctx)
  
  
  def wf_print(users, msg_type, event=None, ext_ctx=None):
      print("wf_print: %s, %s, %s" % (users, msg_type, event))
  
new_contents: from lbutils import as_callable
  
  from lbworkflow import settings
  
  # wf_send_sms(users, mail_type, event, ext_ctx)
  # wf_send_mail(users, mail_type, event, ext_ctx)
  
  
  def wf_send_msg(users, msg_type, event=None, ext_ctx=None):
      if not users:
          return
  
      users = set(users)
      if event:  # ignore operator
          if event.user in users:
              users = users.remove(event.user)
  
      for send_msg in settings.WF_SEND_MSG_FUNCS:
          as_callable(send_msg)(users, msg_type, event, ext_ctx)
  
  
  def wf_print(users, msg_type, event=None, ext_ctx=None):
      print("wf_print: %s, %s, %s" % (users, msg_type, event))
  
subject: fix flake8