code: def to_frame(self, ctx, dataset):
      ...
  
imports: import functools
  import pandas
  from typing import Union
  from .conf.default_config import DATAFRAME_BLOCK_ROW_SIZE
  from .entity import types
  from ._dataframe import DataFrame
  from .manager import DataManager
  from fate.arch.trace import auto_trace
label_desc: Use image node_id 2 for calling the TorchDataSetReader obj's underlying member method code with example usage: obj.to_frame(ctx, dataset) without return types