code: def create_horovod_multiprocessing_backend():
      from bigdl.nano.deps.horovod.multiprocs_backend import (
          HorovodBackend,
      )
  
      return HorovodBackend()
  
label_desc: Use image node_id 1 for calling a global function with example usage: create_horovod_multiprocessing_backend() and returns: HorovodBackend