class_docstr: Subclass of QGroupBox that implements collapse handle.
      
class_docstr_tok: ["Subclass","of","QGroupBox","that","implements","collapse","handle","."]
code: def widgetGroupInterface(self):
      return (
          self.sigCollapseChanged,
          GroupBox.collapsed,
          GroupBox.setCollapsed,
          True,
      )
  
file_path: pyqtgraph/pyqtgraph/widgets/GroupBox.py
imports: from ..Qt import QtCore, QtGui, QtWidgets
  from .PathButton import PathButton
label_desc: Use image node_id 9 for calling the GroupBox obj's underlying member method code with example usage: obj.widgetGroupInterface() and returns: self,  GroupBox,  GroupBox,  True