code: def make_eye_loader(dates, sids):
      """
      Make a PipelineLoader that emits np.eye arrays for the columns in
      ``TestingDataSet``.
      """
      return EyeLoader(TestingDataSet.columns, dates, sids)
  
imports: from .synthetic import EyeLoader, SeededRandomLoader
  from ..data.testing import TestingDataSet
label_desc: Use image node_id 1 for calling a global function with example usage: make_eye_loader(dates, sids) and returns: EyeLoader