code: def _div_ceil(a, b):
      """Calculate ceil of a/b without decaying to float."""
      return -(-a // b)
  
imports: import os
  from nvidia.dali._multiproc import shared_mem
  from nvidia.dali._multiproc.messages import ShmMessageDesc
  from nvidia.dali._utils.external_source_impl import assert_cpu_sample_data_type, sample_to_numpy
  import pickle
label_desc: Use image node_id 1 for calling a global function with example usage: _div_ceil(a, b) and returns: unknown