class_docstr: Test miscellaneous helper functions in data_manager.
class_docstr_tok: ["Test","miscellaneous","helper","functions","in","data_manager","."]
docstr: Test that list_datasets returns either the S3 foldermap, or the local tree.
docstr_tok: ["Test","that","list_datasets","returns","either","the","S3","foldermap",",","or","the","local","tree","."]
code: def test_list_datasets(self, tmp_path):
      """Test that list_datasets returns either the S3 foldermap, or the local tree."""
      assert qml.data.list_datasets() == {
          "qspin": {"Heisenberg": {"closed": {"chain": ["1x4"]}}},
          "qchem": {"H2": {"6-31G": ["0.46", "1.0", "1.16"]}},
      }
  
imports: import os
  from pathlib import Path, PosixPath
  from unittest.mock import MagicMock, patch
  import pytest
  import requests
  import pennylane
  import pennylane.data.data_manager
  from pennylane.data import Dataset
  from pennylane.data.data_manager import S3_URL, DataPath, _validate_attributes
label_desc: Use image node_id 1 for calling the TestMiscHelpers obj's underlying member method code with example usage: obj.test_list_datasets(tmp_path) without return types