class_docstr: Horizontal or vertical splitter with some changes:
  - save/restore works correctly
class_docstr_tok: ["Horizontal","or","vertical","splitter","with","some","changes",":","-","save\/restore","works","correctly"]
code: def _insertItem(self, item, index):
      self.insertWidget(index, item)
      item.show()
  
imports: import weakref
  from ..Qt import QtCore, QtWidgets
  from .Dock import Dock
label_desc: Use image node_id 2 for calling the SplitContainer obj's underlying member method code with example usage: obj._insertItem(item, index) without return types