code: def _buffered_write_file(fobj):
      """Return a buffered version of a write file object."""
      return io.BufferedWriter(fobj, buffer_size=_IO_BUFFER_SIZE)
  
file_path: catboost/contrib/python/joblib/joblib/numpy_pickle_utils.py
imports: import pickle
  import io
  import sys
  import warnings
  import contextlib
  from .compressor import _ZFILE_PREFIX
  from .compressor import _COMPRESSORS
label_desc: Use image node_id 7 for calling a global function with example usage: _buffered_write_file(fobj) and returns: io