code: def test_shift_palette(self):
      palette = chartify.color_palettes["Greys"]
      assert np.array_equal(
          palette.shift_palette("red", 20).to_hex_list(),
          [
              "#e0afaf",
              "#ca9999",
              "#aa7979",
              "#8e5d5d",
              "#734242",
              "#4f1e1e",
              "#310000",
          ],
      )
  
file_path: chartify/tests/test_colors.py
imports: import chartify
  import importlib
  import numpy
label_desc: Use image node_id 3 for calling the TestColorPalettes obj's underlying member method code with example usage: obj.test_shift_palette() without return types