message: Remove error message which does not apply since we create the datasets and element spec when we call `experimental_distributed_datasets_from_function`.
diff: @@ -1216,12 +1216,6 @@ class DistributedDatasetsFromFunction(_IterableInput):
  @property
  def element_spec(self):
  """The type specification of an element of this dataset."""
  - if self._element_spec is None:
  - raise ValueError("You must create an iterator before calling "
  - "`element_spec` on the distributed dataset or iterator. "
  - "This is because the dataset function is not called "
  - "before an iterator is created.")
  -
  return self._element_spec
  