code: def data_numeric(self):
      a = self.make_numeric_series("col_A")
      b = self.make_numeric_series("col_B")
  
      expected = [(a.name, a), (b.name, b)]
      return (a, b), self.to_data_frame(expected), does_not_raise()
  
imports: from collections import OrderedDict
  from contextlib import nullcontext
  import numpy
  from numpy.testing import assert_array_equal
  import pandas
  import pandas.testing
  import pytest
  from sksurv.testing import FixtureParameterFactory
  from sksurv.util import Surv, _PropertyAvailableIfDescriptor, property_available_if, safe_concat
label_desc: Use image node_id 1 for calling the ConcatCasesAxes1 obj's underlying member method code with example usage: obj.data_numeric() and returns: a,  b,  self,  does_not_raise