code: def test_reprs():
      tracker = SQLiteTracker(":memory:")
      assert "SQLiteTracker" in repr(tracker)
      assert "SQLiteTracker" in tracker._repr_html_()
      assert "(No experiments saved yet)" in repr(tracker)
      assert "(No experiments saved yet)" in tracker._repr_html_()
  
      uuids = [uuid4().hex for _ in range(6)]
  
      for i, uuid in enumerate(uuids):
          tracker.insert(uuid, {"a": i})
          if i == 0:
              # create a delay so the timestamp for the 1st value
              # would be different from others
              time.sleep(3)
  
      expected = [False, True, True, True, True, True]
  
      assert [uuid in repr(tracker) for uuid in uuids] == expected
      assert [
          uuid in tracker._repr_html_() for uuid in uuids
      ] == expected
  
imports: import json
  from uuid import uuid4
  import time
  import pytest
  from sklearn_evaluation.tracker import SQLiteTracker
  from sklearn_evaluation import tracker
  from sklearn_evaluation import plot
label_desc: Use image node_id 11 for calling a global function with example usage: test_reprs() without return types