code: def __call__(self):
      inputs = [self.data]
      kw = self._get_kw(self.data)
      if self.label is not None:
          inputs.append(self.label)
      if self.weight is not None:
          inputs.append(self.weight)
      if self.base_margin is not None:
          inputs.append(self.base_margin)
  
      return self.new_tileable(inputs, **kw)
  
imports: import itertools
  from typing import List, Union
  import numpy
  from ....None import opcodes
  from ....core import get_output_types, recursive_tile
  from ....core.context import get_context, Context
  from ....dataframe.core import DATAFRAME_TYPE
  from ....serialization.serializables import KeyField, Float64Field, ListField, BoolField
  from ....tensor.core import TENSOR_TYPE, TENSOR_CHUNK_TYPE
  from ....tensor import tensor
  from ....typing import TileableType, ChunkType
  from ....utils import has_unknown_shape, ensure_own_data, build_fetch
  from ...operands import LearnOperand, LearnOperandMixin
  from ...utils import convert_to_tensor_or_dataframe, concat_chunks
label_desc: Use image node_id 4 for calling the ToDMatrix obj's underlying member method code with example usage: obj.__call__() and returns: self