text: import pytest
  from ding.framework import Context
  import pickle
  
  
  @pytest.mark.unittest
  def test_pickable():
      ctx = Context(hello="world", keep_me=True)
      ctx.keep("keep_me")
      _ctx = pickle.loads(pickle.dumps(ctx))
      assert _ctx.hello == "world"
  
      _ctx = ctx.renew()
      assert _ctx.keep_me
  