code: def test_color_and_alpha(self):
      x = y = [1, 2, 3]
      m = Path(
          color=(0.4, 0.9, 0.2), fillcolor=(0.2, 0.2, 0.3), alpha=0.5
      )
      p = Plot(x=x, y=y).add(m).plot()
      (line,) = p._figure.axes[0].get_lines()
      assert same_color(line.get_color(), to_rgba(m.color, m.alpha))
      assert same_color(
          line.get_markeredgecolor(), to_rgba(m.color, m.alpha)
      )
      assert same_color(
          line.get_markerfacecolor(), to_rgba(m.fillcolor, m.alpha)
      )
  
imports: import numpy
  import matplotlib
  from matplotlib.colors import same_color, to_rgba
  from numpy.testing import assert_array_equal, assert_array_almost_equal
  from seaborn._core.plot import Plot
  from seaborn._core.moves import Dodge
  from seaborn._marks.line import Dash, Line, Path, Lines, Paths, Range
label_desc: Use image node_id 7 for calling the TestPath obj's underlying member method code with example usage: obj.test_color_and_alpha() without return types