code: def _get_emptydirs(self, files):
          '''Find empty directories and return them
          Only works for actual files in dap'''
          emptydirs = []
          for f in files:
              if self._is_dir(f):
                  empty = True
                  for ff in files:
                      if ff.startswith(f + '/'):
                          empty = False
                          break
                  if empty:
                      emptydirs.append(f)
          return emptydirf _get_emptydirs(self, files):
          '''Find empty directories and return them
          Only works for actual files in dap'''
          emptydirs = []
          for f in files:
              if self._is_dir(f):
                  empty = True
                  for ff in files:
                      if ff.startswith(f + '/'):
                          empty = False
                          break
                  if empty:
                      emptydirs.append(f)
          return emptydirs
docs: Find empty directories and return them
          Only works for actual files in dap