code: def test_get():
      tracker = SQLiteTracker(":memory:")
      uuid = tracker.new()
      tracker.update(uuid, dict(a=1, b=2))
      assert tracker.get(uuid) == dict(a=1, b=2)
  
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 8 for calling a global function with example usage: test_get() without return types