class_docstr: provide context to allow param_info to have different modifiers
code: def pop_modifiers(self):
      assert len(self._modifiers_list) > 0
      self._modifiers_list.pop()
      self._rebuild_modifiers()
  
file_path: pytorch/caffe2/python/modifier_context.py
label_desc: Use image node_id 6 for calling the ModifierContext obj's underlying member method code with example usage: obj.pop_modifiers() without return types