code: def test_dissipating(self):
      heatmap = heatmap_layer(self.locations, dissipating=False)
      state = heatmap.get_state()
      assert not state["dissipating"]
  
imports: import unittest
  import pytest
  import traitlets
  from ..heatmap import _HeatmapOptionsMixin, heatmap_layer, Heatmap, WeightedHeatmap
  from ..geotraitlets import InvalidPointException, InvalidWeightException
label_desc: Use image node_id 10 for calling the HeatmapLayer obj's underlying member method code with example usage: obj.test_dissipating() without return types