code: def test_color_dict(self, xyz_levels: XYZ_Levels) -> None:
      # palette collection is dict[int, palette]
      x, y, z, levels = xyz_levels
      colors_dict = {
          3: ["red", "green", "blue"],
          4: ["red", "yellow", "green", "blue"],
      }
  
      # Required length is in dict
      cr = from_contour(x, y, z, levels, line_color=colors_dict)
      assert cr.line_renderer.data_source.data["line_color"] == [
          "red",
          "green",
          "blue",
      ]
  
      # Required length greater than max dict key
      cr = from_contour(
          x, y, z, [0, 1, 2, 3, 4], line_color=colors_dict
      )
      assert cr.line_renderer.data_source.data["line_color"] == (
          "#ff0000",
          "#ffbf00",
          "#7fbf00",
          "#00603f",
          "#0000ff",
      )
  
      # Required length less than min dict key
      cr = from_contour(x, y, z, [1, 2], line_color=colors_dict)
      assert cr.line_renderer.data_source.data["line_color"] == (
          "#ff0000",
          "#0000ff",
      )
  
imports: from __future__ import annotations
  import pytest
  from typing import TYPE_CHECKING
  import numpy
  from bokeh.plotting.contour import FillData, LineData, contour_data, from_contour
label_desc: Use image node_id 4 for calling the Test_from_contour obj's underlying member method code with example usage: obj.test_color_dict(xyz_levels) without return types