class_docstr: Fake dataset.
docstr: Close the dataset.
docstr_tok: ["Close","the","dataset","."]
code: def close(self):
      """Close the dataset."""
      return
  
imports: import unittest
  from unittest import mock
  import numpy
  import pytest
  import xarray
label_desc: Use image node_id 5 for calling the FakeDataset obj's underlying member method code with example usage: obj.close() without return types