code: def test_summary_report(self):
      r = summary.Reporter(log_interval=2, smooth_interval=2)
      out = StringIO()
      r.add(0, "k", 0.1)
      r.add(1, "k", 0.2)
      r.report()
      r.add(2, "k", 0.3)
      r.report(out)
      self.assertEqual(out.getvalue(), "Step 2: k = 0.25000")
  
imports: import unittest
  from io import StringIO
  from studio.torch import summary
label_desc: Use image node_id 1 for calling the ReporterTest obj's underlying member method code with example usage: obj.test_summary_report() without return types