class_docstr: Fake dataset.
docstr: Rename the dataset.
docstr_tok: ["Rename","the","dataset","."]
code: def rename(self, *args, **kwargs):
      """Rename the dataset."""
      return self
  
imports: import unittest
  from unittest import mock
  import numpy
  import pytest
  import xarray
label_desc: Use image node_id 4 for calling the FakeDataset obj's underlying member method code with example usage: obj.rename() and returns: self