code: def _initialize_all_variables(session):
      init_vars = tfv1.global_variables()
      for v in init_vars:
          session.run(v.initializer)
  
file_path: DeepSpeech/training/deepspeech_training/util/checkpoints.py
imports: import sys
  import tensorflow
  import tensorflow.compat.v1
  from .flags import FLAGS
  from .logging import log_info, log_error, log_warn
label_desc: Use image node_id 3 for calling a global function with example usage: _initialize_all_variables(session) without return types