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
      )
  
file_path: bluefog/bluefog/common/util.py
imports: from contextlib import contextmanager
  from multiprocessing import Process, Queue
  import os
  import sysconfig
label_desc: Use image node_id 6 for calling a global function with example usage: extension_available(ext_base_name, verbose) and returns: unknown