code: def test_label_font_size_op_ints(self):
      labels = Labels(
          [(0, 0, 10), (0, 1, 4), (0, 2, 8)], vdims="size"
      ).opts(text_font_size="size")
      plot = bokeh_renderer.get_plot(labels)
      cds = plot.handles["cds"]
      glyph = plot.handles["glyph"]
      self.assertEqual(
          cds.data["text_font_size"], ["10pt", "4pt", "8pt"]
      )
      self.assertEqual(
          property_to_dict(glyph.text_font_size),
          {"field": "text_font_size"},
      )
  
imports: import numpy
  from bokeh.models import CategoricalColorMapper, LinearColorMapper
  from holoviews.core.dimension import Dimension
  from holoviews.core.options import Cycle
  from holoviews.core.spaces import HoloMap
  from holoviews.element import Labels
  from holoviews.plotting.bokeh.util import property_to_dict
  from ..utils import ParamLogStream
  from .test_plot import TestBokehPlot, bokeh_renderer
label_desc: Use image node_id 13 for calling the TestLabelsPlot obj's underlying member method code with example usage: obj.test_label_font_size_op_ints() without return types