code: def _load_backend(mod_name):
      mod = importlib.import_module(".%s" % mod_name, __name__)
      thismod = sys.modules[__name__]
      for api, obj in mod.__dict__.items():
          setattr(thismod, api, obj)
  
imports: import importlib
  import os
  import sys
  from ..backend import backend_name
  from ..utils import expand_as_pair
label_desc: Use image node_id 1 for calling a global function with example usage: _load_backend(mod_name) without return types