code: def test_single_list(self):
      raw_feature, y_true = self._get_raw_data()
  
      target = _get_raw_MetricFrame()
      result = target._process_features("SF", raw_feature, y_true)
      self._common_validations(result, "SF0")
  
imports: import numpy
  import pandas
  import pytest
  import fairlearn.metrics
  from .utils import _get_raw_MetricFrame
label_desc: Use image node_id 3 for calling the TestSingleFeature obj's underlying member method code with example usage: obj.test_single_list() without return types