code: def __init__(self, op_list):
      self._ops = []
      for op in op_list:
          if isinstance(op, _CompoundOp):
              self._ops += op._ops
          else:
              self._ops.append(op)
  
imports: from typing import List, Sequence, Union, Callable
  from nvidia.dali.data_node import DataNode
label_desc: Use image node_id 1 to create a new _CompoundOp object  with example: obj = _CompoundOp(op_list)