code: def test_heatmap_holomap(self):
      hm = HoloMap(
          {
              "A": HeatMap(np.random.randint(0, 10, (100, 3))),
              "B": HeatMap(np.random.randint(0, 10, (100, 3))),
          }
      )
      plot = mpl_renderer.get_plot(hm.opts(radial=True))
      self.assertIsInstance(plot, RadialHeatMapPlot)
  
file_path: holoviews/holoviews/tests/plotting/matplotlib/test_radialheatmap.py
imports: from itertools import product
  import numpy
  from holoviews.core.spaces import HoloMap
  from holoviews.element.raster import HeatMap
  from .test_plot import TestMPLPlot, mpl_renderer
label_desc: Use image node_id 5 for calling the RadialHeatMapPlotTests obj's underlying member method code with example usage: obj.test_heatmap_holomap() without return types