class_docstr: Tests the color_palette function.
docstr: Test value errors for unrecognized sequences
docstr_tok: ["Test","value","errors","for","unrecognized","sequences"]
code: def test_color_sequence_unrecocognized(self):
      """
      Test value errors for unrecognized sequences
      """
      with pytest.raises(YellowbrickValueError):
          color_sequence("PepperBucks", 3)
  
imports: import pytest
  import numpy
  import matplotlib
  from yellowbrick.exceptions import *
  from yellowbrick.style.palettes import *
  from yellowbrick.style.colors import get_color_cycle
  from yellowbrick.style.rcmod import set_aesthetic, set_palette
  from yellowbrick.style.palettes import color_sequence, color_palette
  from yellowbrick.style.palettes import ColorPalette, PALETTES, SEQUENCES
  from tests.base import VisualTestCase
label_desc: Use image node_id 17 for calling the TestColorPaletteFunction obj's underlying member method code with example usage: obj.test_color_sequence_unrecocognized() without return types