code: def test_quadmesh_colormapping(self):
      n = 21
      xs = np.logspace(1, 3, n)
      ys = np.linspace(1, 10, n)
      qmesh = QuadMesh((xs, ys, np.random.rand(n - 1, n - 1)))
      self._test_colormapping(qmesh, 2)
  
file_path: holoviews/holoviews/tests/plotting/bokeh/test_quadmeshplot.py
imports: import numpy
  from bokeh.models import ColorBar
  from holoviews.element import Image, QuadMesh
  from .test_plot import TestBokehPlot, bokeh_renderer
label_desc: Use image node_id 1 for calling the TestQuadMeshPlot obj's underlying member method code with example usage: obj.test_quadmesh_colormapping() without return types