code: def data(self):
          
          if self._data is None:
              self._data = self.arg_container()
  
              if isinstance(self.fieldstorage.value, list):
                  for k in self.fieldstorage.keys():
                      fname = self.fieldstorage[k].filename
                      if fname:
                          self._data[k] = (fname, self.fieldstorage[k].file)
  
                      else:
                          self._data[k] = self.fieldstorage.getfirst(k)
  
          return self._data
docs: Values in request body.