code: def _get_raw_data(self):
      return (
          ["a", "a", "b", "c"],
          [5, 6, 6, 5],
          np.asarray([0, 1, 1, 0]),
      )
  
imports: import numpy
  import pandas
  import pytest
  import fairlearn.metrics
  from .utils import _get_raw_MetricFrame
label_desc: Use image node_id 1 for calling the TestTwoFeatures obj's underlying member method code with example usage: obj._get_raw_data() and returns: list,  list,  np