code: def reset(self):
          
          if self.collname not in self.current_kv_names():
              return # nothing to do
          # we'll simply delete the entire collection and then re-create it.
          r = self.request('delete',
                           self.url+"storage/collections/data/"+self.collname)
          r.raise_for_status()
          self.initialize()
docs: Deletes all entries in the cache area