code: def _chunks(l, n):
      """Yield successive n-sized chunks from l."""
      for i in range(0, len(l), n):
          yield l[i : i + n]
  
file_path: catboost/contrib/python/ipython-genutils/py2/ipython_genutils/text.py
imports: import os
  import re
  import sys
  import textwrap
  from string import Formatter
label_desc: Use image node_id 5 for calling a global function with example usage: _chunks(l, n) without return types