code: def test_cleandict():
      d = {"a": 1, "b": 0, "c": None}
      assert cleandict(d) == {"a": 1, "b": 0}
  
file_path: icevision/tests/utils/test_utils.py
imports: from icevision.all import *
  from icevision.core.record_components import LossesRecordComponent
label_desc: Use image node_id 4 for calling a global function with example usage: test_cleandict() without return types