code: def test_valid_aes_colors():
      assert is_valid_aesthetic("red", "color")
      assert is_valid_aesthetic("#FF0000", "color")
      assert is_valid_aesthetic("#FF000080", "color")
      assert is_valid_aesthetic((1, 0, 0), "color")
      assert is_valid_aesthetic((1, 0, 0), "color")
      assert is_valid_aesthetic((1, 0, 0, 0.5), "color")
  
imports: from copy import deepcopy
  import numpy
  import pandas
  import pytest
  from plotnine import aes, after_scale, after_stat, annotate, coord_trans, facet_null, geom_bar, geom_histogram, geom_line, geom_point, ggplot, ggtitle, guides, labs, lims, scale_x_continuous, stage, stat_identity, theme, theme_gray, xlab, xlim, ylab
  from plotnine.exceptions import PlotnineError, PlotnineWarning
  from plotnine.mapping.aes import is_valid_aesthetic
label_desc: Use image node_id 9 for calling a global function with example usage: test_valid_aes_colors() without return types