code: def test_digit_version():
      assert digit_version("0.2.16") == (0, 2, 16, 0, 0, 0)
      assert digit_version("1.2.3") == (1, 2, 3, 0, 0, 0)
      assert digit_version("1.2.3rc0") == (1, 2, 3, 0, -1, 0)
      assert digit_version("1.2.3rc1") == (1, 2, 3, 0, -1, 1)
      assert digit_version("1.0rc0") == (1, 0, 0, 0, -1, 0)
      assert digit_version("1.0") == digit_version("1.0.0")
      assert digit_version(
          "1.5.0+cuda90_cudnn7.6.3_lms"
      ) == digit_version("1.5")
      assert digit_version("1.0.0dev") < digit_version("1.0.0a")
      assert digit_version("1.0.0a") < digit_version("1.0.0a1")
      assert digit_version("1.0.0a") < digit_version("1.0.0b")
      assert digit_version("1.0.0b") < digit_version("1.0.0rc")
      assert digit_version("1.0.0rc1") < digit_version("1.0.0")
      assert digit_version("1.0.0") < digit_version("1.0.0post")
      assert digit_version("1.0.0post") < digit_version("1.0.0post1")
      assert digit_version("v1") == (1, 0, 0, 0, 0, 0)
      assert digit_version("v1.1.5") == (1, 1, 5, 0, 0, 0)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_digit_version() without return types