code: def getData(self):
      return self.opts.get("x"), self.opts.get("height")
  
imports: import numpy
  from ..None import functions
  from ..None import getConfigOption
  from ..None import Qt
  from ..Qt import QtCore, QtGui
  from .GraphicsObject import GraphicsObject
label_desc: Use image node_id 13 for calling the BarGraphItem obj's underlying member method code with example usage: obj.getData() and returns: self,  self