code: def get_num_microbatches() -> int:
      return _GLOBAL_NUM_MICROBATCHES_CALCULATOR.get()
  
imports: import os
  import sys
  import time
  import torch
  from apex.transformer.microbatches import build_num_microbatches_calculator
  from .arguments import parse_args
label_desc: Use image node_id 2 for calling a global function with example usage: get_num_microbatches() and returns: _GLOBAL_NUM_MICROBATCHES_CALCULATOR