code: def storage_items(self):
          
          if not self._module:
              return {}.items()
          self._storage_init()
          items = []
          module_name = self._module.module_full_name
          for key in self._storage.storage_keys(module_name):
              value = self._storage.storage_get(module_name, key)
              items.add((key, value))
          return items
docs: Return key, value pairs of the stored data for the module.
  
          Keys will contain the following metadata entries:
          - '_ctime': storage creation timestamp
          - '_mtime': storage last modification timestamp