code: def populateTree(self, root, examples):
      bold_font = None
      for key, val in examples.items():
          item = QtWidgets.QTreeWidgetItem([key])
          self.itemCache.append(
              item
          )  # PyQt 4.9.6 no longer keeps references to these wrappers,
          # so we need to make an explicit reference or else the .file
          # attribute will disappear.
          if isinstance(val, OrderedDict):
              self.populateTree(item, val)
          elif isinstance(val, Namespace):
              item.file = val.filename
              if "recommended" in val:
                  if bold_font is None:
                      bold_font = item.font(0)
                      bold_font.setBold(True)
                  item.setFont(0, bold_font)
          else:
              item.file = val
          root.addChild(item)
  
imports: import keyword
  import os
  import pkgutil
  import re
  import subprocess
  import sys
  from argparse import Namespace
  from collections import OrderedDict
  from functools import lru_cache
  import pyqtgraph
  from pyqtgraph.Qt import QT_LIB, QtCore, QtGui, QtWidgets
  import exampleLoaderTemplate_generic
  import utils
label_desc: Use image node_id 11 for calling the ExampleLoader obj's underlying member method code with example usage: obj.populateTree(root, examples) without return types