class_docstr: Test how metadata is combined.
class_docstr_tok: ["Test","how","metadata","is","combined","."]
docstr: Test combining values that are dask arrays.
docstr_tok: ["Test","combining","values","that","are","dask","arrays","."]
code: def test_combine_dask_arrays(self):
      """Test combining values that are dask arrays."""
      import dask.array as da
  
      from satpy.dataset.metadata import combine_metadata
  
      test_metadata = [
          {
              "valid_range": da.from_array(
                  np.array([0.0, 0.00032], dtype=np.float32)
              )
          },
          {
              "valid_range": da.from_array(
                  np.array([0.0, 0.00032], dtype=np.float32)
              )
          },
      ]
      result = combine_metadata(*test_metadata)
      assert "valid_range" not in result
  
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 13 for calling the TestCombineMetadata obj's underlying member method code with example usage: obj.test_combine_dask_arrays() without return types