code: def test_1m_0cf(self, mf_1m_0cf: MetricFrame):
      assert isinstance(mf_1m_0cf.overall_ci, list)
      for item in mf_1m_0cf.overall_ci:
          assert isinstance(item, type(mf_1m_0cf.overall))
      assert len(mf_1m_0cf.overall_ci) == len(QUANTILES)
      assert mf_1m_0cf.ci_quantiles == QUANTILES
      # Overall value should be close to quantile 0.5
      assert mf_1m_0cf.overall_ci[1] == pytest.approx(
          mf_1m_0cf.overall, 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 1 for calling the TestOverallQuantiles obj's underlying member method code with example usage: obj.test_1m_0cf(mf_1m_0cf) without return types