code: def foreground_color(self):
      return (
          Color("#000000")
          if self.get_luminance() > 0.4
          else Color("#ffffff")
      )
  
imports: from collections import OrderedDict
  from bokeh import palettes
  from IPython.core.display import HTML
  import yaml
  from chartify._core.options import options
  from chartify._core import colour
label_desc: Use image node_id 3 for calling the Color obj's underlying member method code with example usage: obj.foreground_color() and returns: unknown