code: def test_labels_text_color_cycle(self):
      hm = HoloMap(
          {
              i: Labels([(0, 0 + i, "Label 1"), (1, 1 + i, "Label 2")])
              for i in range(3)
          }
      ).overlay()
      assert isinstance(hm[0].opts["color"], Cycle)
  
imports: import numpy
  from holoviews.core.options import Cycle
  from holoviews.core.spaces import HoloMap
  from holoviews.element import Labels, Tiles
  from .test_plot import TestPlotlyPlot
label_desc: Use image node_id 8 for calling the TestMapboxLabelsPlot obj's underlying member method code with example usage: obj.test_labels_text_color_cycle() without return types