code: def test_uncan_bytes_buffer():
      data = b"data"
      canned = can(data)
      canned.buffers = [memoryview(buf) for buf in canned.buffers]
      out = uncan(canned)
      assert out == data
  
file_path: ipyparallel/ipyparallel/tests/test_canning.py
imports: import os
  import pickle
  from binascii import b2a_hex
  from functools import partial
  from ipyparallel.serialize import canning
  from ipyparallel.serialize.canning import can, uncan
label_desc: Use image node_id 9 for calling a global function with example usage: test_uncan_bytes_buffer() without return types