code: def serialize_netcdf4_variable(x):
      header, _ = serialize(x.group())
      header["parent-type"] = header["type"]
      header["parent-type-serialized"] = header["type-serialized"]
      header["name"] = x.name
      return header, []
  
file_path: distributed/distributed/protocol/netcdf4.py
imports: from __future__ import annotations
  import netCDF4
  from distributed.protocol.serialize import dask_deserialize, dask_serialize, deserialize, serialize
label_desc: Use image node_id 3 for calling a global function with example usage: serialize_netcdf4_variable(x) and returns: header,  list