code: def test_parse_args():
      actual = utils.parse_arg("a,b,c")
      assert actual == ["a", "b", "c"]
  
      # should ignore spaces
      actual = utils.parse_arg(" a ,b ,c ")
      assert actual == ["a", "b", "c"]
  
      actual = utils.parse_arg("a")
      assert actual == ["a"]
  
      # should stay same for list
      actual = utils.parse_arg(["a", "b"])
      assert actual == ["a", "b"]
  
      # should stay same for dict
      actual = utils.parse_arg({"a": 1})
      assert actual == {"a": 1}
  
imports: import ffn.utils
label_desc: Use image node_id 1 for calling a global function with example usage: test_parse_args() without return types