code: def test_same_label_error(self):
      overlay = Overlay(
          [
              Curve(range(10), label="Same").opts(subcoordinate_y=True)
              for _ in range(2)
          ]
      )
      with pytest.raises(
          ValueError,
          match="Elements wrapped in a subcoordinate_y overlay must all have a unique label",
      ):
          bokeh_renderer.get_plot(overlay)
  
imports: import numpy
  import pytest
  from bokeh.models.tools import WheelZoomTool, ZoomInTool, ZoomOutTool
  from holoviews.core import Overlay
  from holoviews.element import Curve
  from holoviews.element.annotation import VSpan
  from .test_plot import TestBokehPlot, bokeh_renderer
label_desc: Use image node_id 17 for calling the TestSubcoordinateY obj's underlying member method code with example usage: obj.test_same_label_error() without return types