code: def get_reader(
      self, ctx, uri: "URI", metadata: "Metadata", type_name: str
  ) -> DataframeReader:
      return DataframeReader(
          ctx,
          _ArtifactType(uri, metadata=metadata, type_name=type_name),
      )
  
file_path: FATE/python/fate/components/core/component_desc/artifacts/data/_dataframe.py
imports: import logging
  import typing
  from fate.components.core.essential import DataframeArtifactType
  from .._base_type import ArtifactDescribe, DataOutputMetadata, Metadata, _ArtifactType, _ArtifactTypeReader, _ArtifactTypeWriter
label_desc: Use image node_id 3 for calling the DataframeArtifactDescribe obj's underlying member method code with example usage: obj.get_reader(ctx, uri, metadata, type_name) and returns: DataframeReader