code: def chained(self, text=None, fore=None, back=None, style=None):
          
          self.data = ''.join((
              self.data,
              self.color(text=text, fore=fore, back=back, style=style),
          ))
          return self
docs: Called by the various 'color' methods to colorize a single string.
              The RESET_ALL code is appended to the string unless text is empty.
              Raises ValueError on invalid color names.
  
              Arguments:
                  text  : String to colorize, or None for  BG/Style change.
                  fore  : Name of fore color to use.
                  back  : Name of back color to use.
                  style : Name of style to use.