code: def test_element_plot_yticks_items(self):
      curve = Curve([(1, 1), (5, 2), (10, 3)]).opts(
          yticks=[(1, "A"), (1.5, "B"), (2.5, "C"), (3, "D")]
      )
      state = self._get_plot_state(curve)
      self.assertEqual(
          state["layout"]["yaxis"]["tickvals"], [1, 1.5, 2.5, 3]
      )
      self.assertEqual(
          state["layout"]["yaxis"]["ticktext"], ["A", "B", "C", "D"]
      )
  
imports: from collections import deque
  import numpy
  import pandas
  from holoviews.core.spaces import DynamicMap
  from holoviews.element import Curve, Path3D, Scatter3D
  from holoviews.streams import PointerX
  from .test_plot import TestPlotlyPlot, plotly_renderer
label_desc: Use image node_id 27 for calling the TestElementPlot obj's underlying member method code with example usage: obj.test_element_plot_yticks_items() without return types