docs: def add_shapes(self,**kwargs):
  		"""
  		Add a shape to the QuantFigure. 
  
  		kwargs : 
  			hline : int, list or dict
  				Draws a horizontal line at the
  				indicated y position(s)
  				Extra parameters can be passed in
  				the form of a dictionary (see shapes)
  			vline : int, list or dict
  				Draws a vertical line at the
  				indicated x position(s)
  				Extra parameters can be passed in
  				the form of a dictionary (see shapes)
  			hspan : (y0,y1)
  				Draws a horizontal rectangle at the
  				indicated (y0,y1) positions.
  				Extra parameters can be passed in
  				the form of a dictionary (see shapes)
  			vspan : (x0,x1)
  				Draws a vertical rectangle at the
  				indicated (x0,x1) positions.
  				Extra parameters can be passed in
  				the form of a dictionary (see shapes)
  			shapes : dict or list(dict)
  				List of dictionaries with the
  				specifications of a given shape.
  				See help(cufflinks.tools.get_shape)
  				for more information
  			
  		"""
  		kwargs=utils.check_kwargs(kwargs,get_shapes_kwargs(),{},clean_origin=True)
  		for k,v in list(kwargs.items()):
  			if k in self.layout['shapes']:
  				if utils.is_list(v):
  					self.layout['shapes'][k].extend(v)	
  				else:
  					self.layout['shapes'][k].append(v)
  			else:
  				self.layout['shapes'][k]=utils.make_list(v)