code: def color(self, color=None):
          
  
          if color is None:
              return self._color
          else:
              if not isinstance(color, str):
                  raise TypeError("color must be str, not '%s'" % str(color))
              self._color = color
docs: Returns or sets (if a value is provided) the series' colour.
  
          :param str color: If given, the series' colour will be set to this.
          :rtype: ``str``