class_docstr: Used for laying out GraphicsWidgets in a grid.
  This is usually created automatically as part of a :class:`GraphicsLayoutWidget <pyqtgraph.GraphicsLayoutWidget>`.
class_docstr_tok: ["Used","for","laying","out","GraphicsWidgets","in","a","grid",".","This","is","usually","created","automatically","as","part","of","a",":","class",":","`","GraphicsLayoutWidget","<","pyqtgraph.GraphicsLayoutWidget",">","`","."]
code: def _updateItemBorder(self):
      if self.border is None:
          return
  
      item = self.sender()
      if item is None:
          return
  
      r = item.mapRectToParent(item.boundingRect())
      self.itemBorders[item].setRect(r)
  
imports: from ..None import functions
  from ..Qt import QtWidgets
  from .GraphicsWidget import GraphicsWidget
  from .LabelItem import LabelItem
  from .PlotItem import PlotItem
  from .ViewBox import ViewBox
label_desc: Use image node_id 18 for calling the GraphicsLayout obj's underlying member method code with example usage: obj._updateItemBorder() without return types