code: def _cond_merge(split_predicate):
      this_condition_stack().track_merge(split_predicate)
      yield
      this_condition_stack().no_branch()
  
imports: from nvidia.dali import _autograph
  from nvidia.dali.data_node import DataNode
  from nvidia.dali import fn
  from nvidia.dali._autograph.utils import ag_logging
  from nvidia.dali._autograph.operators import variables
  from contextlib import contextmanager
  from enum import Enum
  import tree
label_desc: Use image node_id 5 for calling a global function with example usage: _cond_merge(split_predicate) without return types