class_docstr: GraphicsWidget displaying text.
  Used mainly as axis labels, titles, etc.
  
  Note: To display text inside a scaled view (ViewBox, PlotWidget, etc) use TextItem
code: def itemRect(self):
      return self.item.mapRectToParent(self.item.boundingRect())
  
file_path: pyqtgraph/pyqtgraph/graphicsItems/LabelItem.py
imports: from ..None import functions
  from ..None import getConfigOption
  from ..Qt import QtCore, QtWidgets, QtGui
  from .GraphicsWidget import GraphicsWidget
  from .GraphicsWidgetAnchor import GraphicsWidgetAnchor
label_desc: Use image node_id 8 for calling the LabelItem obj's underlying member method code with example usage: obj.itemRect() and returns: self