code: def test_decollate_layout_kdims(self):
      layout = self.dmap_ab + self.dmap_b
      decollated = layout.decollate()
      self.assertIsInstance(decollated, DynamicMap)
      self.assertEqual(decollated.kdims, self.dmap_ab.kdims)
      self.assertEqual(
          decollated[2, 3], Points([2, 3]) + Points([3, 3])
      )
      self.assertEqual(
          decollated.callback.callable(2, 3),
          Points([2, 3]) + Points([3, 3]),
      )
  
imports: from unittest import skipIf
  import param
  from holoviews.core import DynamicMap, GridSpace, HoloMap, NdOverlay, Overlay
  from holoviews.element import Points
  from holoviews.element.comparison import ComparisonTestCase
  from holoviews.streams import PlotSize, RangeXY, Stream
label_desc: Use image node_id 2 for calling the TestDecollation obj's underlying member method code with example usage: obj.test_decollate_layout_kdims() without return types