code: def test_1m_0cf_dict(
      self,
      mf_1mdict_0cf: MetricFrame,
      comparator: str,
      method: str,
  ):
      result, nominal, _ = self._get_comparators(
          mf_1mdict_0cf, comparator, method
      )
      assert isinstance(result, list)
      assert len(result) == len(QUANTILES)
      assert mf_1mdict_0cf.ci_quantiles == QUANTILES
      # Check median close to nominal
      assert result[1]["mse"] == pytest.approx(
          nominal["mse"], abs=ABS_TOL
      )
  
imports: import numpy
  import pytest
  import sklearn.metrics
  from fairlearn.metrics import MetricFrame, count
  from .data_for_test import g_1, g_2, y_p, y_t
label_desc: Use image node_id 3 for calling the TestGroupComparisons obj's underlying member method code with example usage: obj.test_1m_0cf_dict(mf_1mdict_0cf, comparator, method) without return types