code: def test_from_tags_not_valid_format():
      span_utils = SpanUtils("test this.", ["test", "this", "."])
      with pytest.raises(
          ValueError, match="Tags are not in the IOB or BILOU format!"
      ):
          span_utils.from_tags(["mock", "mock", "mock"])
  
file_path: argilla/tests/unit/utils/test_span_utils.py
imports: import pytest
  from argilla.utils.span_utils import SpanUtils
label_desc: Use image node_id 11 for calling a global function with example usage: test_from_tags_not_valid_format() without return types