docs: def get_views(self, item=None, key=None, option=None):
          """Return the views object.
  
          If key is None, return all the view for the current plugin
          else if option is None return the view for the specific key (all option)
          else return the view fo the specific key/option
  
          Specify item if the stats are stored in a dict of dict (ex: NETWORK, FS...)
          """
          if item is None:
              item_views = self.views
          else:
              item_views = self.views[item]
  
          if key is None:
              return item_views
          else:
              if option is None:
                  return item_views[key]
              else:
                  if option in item_views[key]:
                      return item_views[key][option]
                  else:
                      return 'DEFAULT'