class_docstr: Widget for displaying hierarchical python data structures
  (eg, nested dicts, lists, and arrays)
code: def __init__(self, parent=None, data=None):
      QtWidgets.QTreeWidget.__init__(self, parent)
      self.setVerticalScrollMode(self.ScrollMode.ScrollPerPixel)
      self.setData(data)
      self.setColumnCount(3)
      self.setHeaderLabels(["key / index", "type", "value"])
      self.setAlternatingRowColors(True)
  
file_path: pyqtgraph/pyqtgraph/widgets/DataTreeWidget.py
imports: import traceback
  import types
  from collections import OrderedDict
  import numpy
  from ..Qt import QtWidgets
  from .TableWidget import TableWidget
label_desc: Use image node_id 1 to create a new DataTreeWidget object from inherited base classes: QtWidgets with example: obj = DataTreeWidget(parent, data)