code: def serialize_h5py_file(f):
      if f.mode != "r":
          raise ValueError("Can only serialize read-only h5py files")
      return {"filename": f.filename}, []
  
imports: from __future__ import annotations
  import h5py
  from distributed.protocol.serialize import dask_deserialize, dask_serialize
label_desc: Use image node_id 1 for calling a global function with example usage: serialize_h5py_file(f) and returns: dict,  list