code: def test_copy(self, copy_func):
      cache = LRUCache(2)
      cache["a"] = 1
      cache["b"] = 2
      copy = copy_func(cache)
      assert copy._queue == cache._queue
      copy["c"] = 3
      assert copy._queue != cache._queue
      assert copy.keys() == ["c", "b"]
  
imports: import pickle
  import random
  from collections import deque
  from copy import copy
  import pytest
  from markupsafe import Markup
  from jinja2.utils import consume
  from jinja2.utils import generate_lorem_ipsum
  from jinja2.utils import LRUCache
  from jinja2.utils import missing
  from jinja2.utils import object_type_repr
  from jinja2.utils import select_autoescape
  from jinja2.utils import urlize
label_desc: Use image node_id 5 for calling the TestLRUCache obj's underlying member method code with example usage: obj.test_copy(copy_func) without return types