code: def _convert_tileable(obj):
      if isinstance(obj, np.ndarray):
          return mars_tensor(obj)
      elif isinstance(obj, pd.DataFrame):
          return MarsDataFrame(obj)
      elif isinstance(obj, pd.Series):
          return MarsSeries(obj)
      return obj
  
imports: import enum
  import itertools
  from collections import namedtuple
  import numpy
  import pandas
  from ....dataframe import DataFrame, Series
  from ....tensor import tensor
label_desc: Use image node_id 5 for calling the LGBMScikitLearnBase obj's underlying member method code with example usage: obj._convert_tileable(obj) and returns: obj, mars_tensor, MarsDataFrame, MarsSeries