code: def make_val_loader(manifest_file, manifest_root, backend_obj):
      aeon_config = common_config(
          manifest_file, manifest_root, backend_obj.bsz
      )
      return wrap_dataloader(AeonDataLoader(aeon_config))
  
file_path: neon/examples/whale_calls/data.py
imports: import os
  import numpy
  from zipfile import ZipFile
  from glob import glob
  from neon.util.persist import get_data_cache_or_nothing
  from neon.data.aeon_shim import AeonDataLoader
  from neon.data.dataloader_transformers import OneHot, TypeCast
label_desc: Use image node_id 4 for calling a global function with example usage: make_val_loader(manifest_file, manifest_root, backend_obj) and returns: wrap_dataloader