code: def implements(self, interface=None):
      ints = ["plotData"]
      if interface is None:
          return ints
      return interface in ints
  
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 11 for calling the BarGraphItem obj's underlying member method code with example usage: obj.implements(interface) and returns: unknown, ints