code: def test_errorbars_line_color_op(self):
      errorbars = ErrorBars(
          [
              (0, 0, 0.1, 0.2, "#000000"),
              (0, 1, 0.2, 0.4, "#FF0000"),
              (0, 2, 0.6, 1.2, "#00FF00"),
          ],
          vdims=["y", "perr", "nerr", "color"],
      ).opts(edgecolor="color")
      plot = mpl_renderer.get_plot(errorbars)
      artist = plot.handles["artist"]
      self.assertEqual(
          artist.get_edgecolors(),
          np.array([[0, 0, 0, 1], [1, 0, 0, 1], [0, 1, 0, 1]]),
      )
  
file_path: holoviews/holoviews/tests/plotting/matplotlib/test_errorbarplot.py
imports: import numpy
  import pytest
  from holoviews.core.options import AbbreviatedException
  from holoviews.core.spaces import HoloMap
  from holoviews.element import ErrorBars
  from .test_plot import TestMPLPlot, mpl_renderer
label_desc: Use image node_id 5 for calling the TestErrorBarPlot obj's underlying member method code with example usage: obj.test_errorbars_line_color_op() without return types