code: def removeItem(self, item):
      if isinstance(item, QtWidgets.QTreeWidgetItem):
          item = item.canvasItem()
  
      if isinstance(item, CanvasItem):
          item.setCanvas(None)
          listItem = item.listItem
          listItem.canvasItem = None
          item.listItem = None
          self.itemList.removeTopLevelItem(listItem)
          self.items.remove(item)
          ctrl = item.ctrlWidget()
          ctrl.hide()
          self.ui.ctrlLayout.removeWidget(ctrl)
          ctrl.setParent(None)
      else:
          if hasattr(item, "_canvasItem"):
              self.removeItem(item._canvasItem)
          else:
              self.view.removeItem(item)
  
      gc.collect()
  
imports: import gc
  import importlib
  import weakref
  import warnings
  from ..graphicsItems.GridItem import GridItem
  from ..graphicsItems.ROI import ROI
  from ..graphicsItems.ViewBox import ViewBox
  from ..Qt import QT_LIB, QtCore, QtGui, QtWidgets
  from .None import CanvasTemplate_generic
  from .CanvasItem import CanvasItem, GroupCanvasItem
  from .CanvasManager import CanvasManager
label_desc: Use image node_id 25 for calling the Canvas obj's underlying member method code with example usage: obj.removeItem(item) without return types