code: def test_one_big_chapter(self):
      self.logbook.record(
          gen=0,
          evals=100,
          fitness={
              "obj 1": {"avg": 1.0, "max": 10},
              "obj 2": {"avg": 1.0, "max": 10},
          },
      )
      self.logbook.record(
          gen=0,
          evals=100,
          fitness={
              "obj 1": {"avg": 1.0, "max": 10},
              "obj 2": {"avg": 1.0, "max": 10},
          },
      )
      print(self.logbook.stream)
  
file_path: deap/tests/test_logbook.py
imports: import unittest
  from deap import tools
label_desc: Use image node_id 4 for calling the LogbookTest obj's underlying member method code with example usage: obj.test_one_big_chapter() without return types