code: def test_to_tags():
      span_utils = SpanUtils("test this.", ["test", "this", "."])
      tags = span_utils.to_tags([("mock", 0, 9)])
      assert tags == ["B-mock", "I-mock", "O"]
  
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 9 for calling a global function with example usage: test_to_tags() without return types