code: def test_dataid_elements_picklable():
      """Test individual elements of DataID can be pickled.
  
      In some cases, like in the base reader classes, the elements of a DataID
      are extracted and stored in a separate dictionary. This means that the
      internal/fancy pickle handling of DataID does not play a part.
  
      """
      import pickle
  
      from satpy.tests.utils import make_dataid
  
      did = make_dataid(
          name="hi",
          wavelength=(10, 11, 12),
          resolution=1000,
          calibration="radiance",
      )
      for value in did.values():
          pickled_value = pickle.loads(pickle.dumps(value))
          assert value == pickled_value
  
imports: import unittest
  from datetime import datetime
  import numpy
  import pytest
  from satpy.dataset.dataid import DataID, DataQuery, ModifierTuple, WavelengthRange, minimal_default_keys_config
  from satpy.readers.pmw_channels_definitions import FrequencyDoubleSideBand, FrequencyQuadrupleSideBand, FrequencyRange
  from satpy.tests.utils import make_cid, make_dataid, make_dsq
label_desc: Use image node_id 7 for calling a global function with example usage: test_dataid_elements_picklable() without return types