code: def test_valid_aes_shapes():
      assert is_valid_aesthetic("o", "shape")
      assert is_valid_aesthetic((4, 1, 45), "shape")
      assert not is_valid_aesthetic([4, 1, 45], "shape")
  
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 8 for calling a global function with example usage: test_valid_aes_shapes() without return types