class_docstr: Button graphicsItem displaying an image.
class_docstr_tok: ["Button","graphicsItem","displaying","an","image","."]
code: def disable(self):
      self.enabled = False
      self.setOpacity(0.4)
  
file_path: pyqtgraph/pyqtgraph/graphicsItems/ButtonItem.py
imports: from ..Qt import QtCore, QtGui
  from .GraphicsObject import GraphicsObject
label_desc: Use image node_id 6 for calling the ButtonItem obj's underlying member method code with example usage: obj.disable() without return types