class_docstr: Displays a regular polygon
  
  Parameters
  ----------
  center : array-like (x, y)
      Center of the regular polygon
  color : str | tuple | list of colors
      Fill color of the polygon
  border_color : str | tuple | list of colors
      Border color of the polygon
  border_width: float
      The width of the border in pixels
  radius : float
      Radius of the regular polygon
      Defaults to  0.1
  sides : int
      Number of sides of the regular polygon
docstr: The number of sides in the regular polygon.
docstr_tok: ["The","number","of","sides","in","the","regular","polygon","."]
code: def sides(self):
      """The number of sides in the regular polygon."""
      # return using the property accessor for num_segments
      return self.num_segments
  
imports: from __future__ import division
  from .ellipse import EllipseVisual
label_desc: Use image node_id 2 for calling the RegularPolygonVisual obj's underlying member method code with example usage: obj.sides() and returns: self