code: def test_hspans_plot_xlabel_ylabel(self):
      hspans = HSpans(
          {"y0": [0, 3, 5.5], "y1": [1, 4, 6.5], "extra": [-1, -2, -3]},
          vdims=["extra"],
      ).opts(xlabel="xlabel", ylabel="xlabel")
      plot = bokeh_renderer.get_plot(hspans)
      assert isinstance(plot.handles["glyph"], BkHStrip)
      assert plot.handles["xaxis"].axis_label == "xlabel"
      assert plot.handles["yaxis"].axis_label == "xlabel"
  
imports: import unittest
  import numpy
  import holoviews
  from holoviews.element import Arrow, HLine, HLines, HSpan, HSpans, Labels, Slope, Text, VLine, VLines, VSpan, VSpans
  from holoviews.plotting.bokeh.util import bokeh32, bokeh33
  from .test_plot import TestBokehPlot, bokeh_renderer
label_desc: Use image node_id 3 for calling the TestHVSpansPlot obj's underlying member method code with example usage: obj.test_hspans_plot_xlabel_ylabel() without return types