class_docstr: Mimic xarray Dataset object.
class_docstr_tok: ["Mimic","xarray","Dataset","object","."]
docstr: Act like close method.
docstr_tok: ["Act","like","close","method","."]
code: def close(self):
      """Act like close method."""
      return
  
imports: import unittest
  from unittest import mock
  import dask.array
  import numpy
  import xarray
  from pytest import approx, raises
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