code: def testPrintNamedTupleIndex(self):
      with self.assertOutputMatches(stdout="22", stderr=None):
          core.Fire(tc.NamedTuple, command=["point", "1"])
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from fire import core
  from fire import test_components
  from fire import testutils
  from fire import trace
  import mock
  import six
label_desc: Use image node_id 19 for calling the CoreTest obj's underlying member method code with example usage: obj.testPrintNamedTupleIndex() without return types