code: def extension_available(ext_base_name, verbose=False):
      available_fn = lambda ext: ext is not None
      return (
          _check_extension_lambda(
              ext_base_name, available_fn, "built", verbose
          )
          or False
      )
  
imports: import json
  import multiprocessing
  import os
  import sys
  import sysconfig
  import warnings
  from contextlib import contextmanager
  from horovod.common.exceptions import get_version_mismatch_message, HorovodVersionMismatchError
label_desc: Use image node_id 5 for calling a global function with example usage: extension_available(ext_base_name, verbose) and returns: unknown