code: def test_single_series(self):
      r_f, y_true = self._get_raw_data()
      raw_feature = pd.Series(data=r_f, name="Some Series")
  
      target = _get_raw_MetricFrame()
      result = target._process_features("Ignored", raw_feature, y_true)
      self._common_validations(result, "Some Series")
  
imports: import numpy
  import pandas
  import pytest
  import fairlearn.metrics
  from .utils import _get_raw_MetricFrame
label_desc: Use image node_id 4 for calling the TestSingleFeature obj's underlying member method code with example usage: obj.test_single_series() without return types