code: def byte_file():
      _file_handle = io.BytesIO()
      yield _file_handle
      _file_handle.seek(0)
  
imports: import codecs
  import io
  import math
  from ast import literal_eval
  from contextlib import contextmanager
  from textwrap import dedent
  import pytest
  import networkx
  from networkx.readwrite.gml import literal_destringizer, literal_stringizer
label_desc: Use image node_id 1 for calling a global function with example usage: byte_file() without return types