class_docstr: Test dataset grouping in MultiScene.
class_docstr_tok: ["Test","dataset","grouping","in","MultiScene","."]
docstr: Get group definitions for the MultiScene.
docstr_tok: ["Get","group","definitions","for","the","MultiScene","."]
code: def groups(self):
      """Get group definitions for the MultiScene."""
      return {
          DataQuery(name="odd"): ["ds1", "ds3"],
          DataQuery(name="even"): ["ds2", "ds4"],
      }
  
file_path: satpy/satpy/tests/multiscene_tests/test_misc.py
imports: import unittest
  from unittest import mock
  import pytest
  import xarray
  from satpy import DataQuery
  from satpy.tests.multiscene_tests.test_utils import _create_test_area, _create_test_dataset, _create_test_scenes
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 4 for calling the TestMultiSceneGrouping obj's underlying member method code with example usage: obj.groups() and returns: dict