class_docstr: Test the IciL1bNCFileHandler reader.
class_docstr_tok: ["Test","the","IciL1bNCFileHandler","reader","."]
docstr: Test get dataset handles calibration.
docstr_tok: ["Test","get","dataset","handles","calibration","."]
code: def test_get_dataset_handles_calibration(
      self,
      reader,
      dataset_info,
  ):
      """Test get dataset handles calibration."""
      dataset_id = {"name": "1"}
      dataset = reader.get_dataset(dataset_id, dataset_info)
      assert dataset.attrs["calibration"] == "brightness_temperature"
      np.testing.assert_allclose(dataset, 272.73734)
  
imports: from datetime import datetime
  from unittest.mock import patch
  import numpy
  import pytest
  import xarray
  from netCDF4 import Dataset
  from satpy.readers.ici_l1b_nc import IciL1bNCFileHandler, InterpolationType
label_desc: Use image node_id 22 for calling the TestIciL1bNCFileHandler obj's underlying member method code with example usage: obj.test_get_dataset_handles_calibration(reader, dataset_info) without return types