code: def load_labels_v2(filename):
      """Internal functions for loading labels from V2 format"""
      label_dict = {}
      nd_dict = _CAPI_LoadLabels_V2(filename)
      for k, v in nd_dict.items():
          label_dict[k] = F.zerocopy_from_dgl_ndarray(v)
      return label_dict
  
imports: from __future__ import absolute_import
  import os
  from ..None import backend
  from .._ffi.function import _init_api
  from .._ffi.object import ObjectBase, register_object
  from ..base import dgl_warning, DGLError
  from ..heterograph import DGLGraph
  from .heterograph_serialize import save_heterographs
label_desc: Use image node_id 8 for calling a global function with example usage: load_labels_v2(filename) and returns: label_dict