code: def get_default_return_for(
      experiment: Experiment, ret: str
  ) -> tp.Any:
      if ret == "brush_extents":
          return ()
      elif ret in ["selected_uids", "filtered_uids"]:
          return tuple(dp.uid for dp in experiment.datapoints)
      else:
          raise RuntimeError(f'HiPlot: Unknown return type "{ret}"')
  
file_path: hiplot/hiplot/streamlit_helpers.py
imports: import typing
  import json
  import uuid
  import warnings
  from pathlib import Path
  from .experiment import Experiment, _is_running_ipython
label_desc: Use image node_id 4 for calling the ExperimentStreamlitComponent obj's underlying member method code with example usage: obj.get_default_return_for(experiment, ret) and returns: , tuple