code: def hyperparameters(dsinfo):
      return dict(
          context_length=2,
          quantiles=[0.1, 0.5, 0.9],
          num_workers=0,
      )
  
imports: from pathlib import Path
  import pytest
  import tempfile
  from gluonts.ext.rotbaum import TreeEstimator, TreePredictor
label_desc: Use image node_id 1 for calling a global function with example usage: hyperparameters(dsinfo) and returns: dict