code: def listVolumes(self):
          
          for (vol, paths) in self.paths.items():
              for path in paths:
                  if path.startswith('/'):
                      continue
                  if path == '.':
                      continue
                  if self.userVolume is not None and os.path.basename(path) != self.userVolume:
                      continue
                  yield vol
                  break
docs: Return list of all volumes in this Store's selected directory.