code: def get_dm_channel(self, userid):
          '''Perform a lookup of users to resolve a userid to a DM channel
  
          Args:
              userid (string): Slack userid to lookup.
  
          Returns:
              string: DM channel ID of user
          '''
  
          dm_open = self.slack_client.api_call('im.open', user=userid)
          return dm_open['channel']['id'f get_dm_channel(self, userid):
          '''Perform a lookup of users to resolve a userid to a DM channel
  
          Args:
              userid (string): Slack userid to lookup.
  
          Returns:
              string: DM channel ID of user
          '''
  
          dm_open = self.slack_client.api_call('im.open', user=userid)
          return dm_open['channel']['id']
docs: Perform a lookup of users to resolve a userid to a DM channel
  
          Args:
              userid (string): Slack userid to lookup.
  
          Returns:
              string: DM channel ID of user