code: def test_pickle_buffer():
      arr = np.arange(10).view("|u1")
      buf = as_buffer(arr)
      assert buf.size == arr.nbytes
      pickled = pickle.dumps(buf)
      unpacked = pickle.loads(pickled)
      # Check that unpacked capacity equals buf.size
      assert unpacked.size == arr.nbytes
  
file_path: cudf/python/cudf/cudf/tests/test_pickling.py
imports: import pickle
  import numpy
  import pandas
  import pytest
  from cudf import DataFrame, GenericIndex, RangeIndex, Series
  from cudf.core.buffer import as_buffer
  from cudf.testing._utils import assert_eq
label_desc: Use image node_id 7 for calling a global function with example usage: test_pickle_buffer() without return types