code: def _set_inputs(self, inputs):
      super()._set_inputs(inputs)
      input_iter = iter(self._inputs)
      self._input = next(input_iter)
      if self._preds is not None:
          self._preds = [next(input_iter) for _ in self._preds]
      if self._succs is not None:
          self._succs = [next(input_iter) for _ in self._succs]
  
imports: import numpy
  import pandas
  from ....None import opcodes
  from ....core import recursive_tile
  from ....serialization.serializables import FieldTypes, AnyField, Int64Field, BoolField, StringField, Int32Field, KeyField, TupleField, DictField, ListField
  from ....utils import lazy_import, has_unknown_shape, pd_release_version, calc_nsplits
  from ...operands import DataFrameOperand, DataFrameOperandMixin
  from ...core import DATAFRAME_TYPE
  from ...utils import build_empty_df, build_empty_series, parse_index
label_desc: Use image node_id 15 for calling the DataFrameRollingAgg obj's underlying member method code with example usage: obj._set_inputs(inputs) without return types