code: def test_sent(en_tokenizer):
      doc = en_tokenizer(
          "Check span.sent raises error if doc is not sentencized."
      )
      span = doc[1:3]
      assert not span.doc.has_annotation("SENT_START")
      with pytest.raises(ValueError):
          span.sent
  
imports: import numpy
  import pytest
  from numpy.testing import assert_array_equal
  from thinc.api import get_current_ops
  from spacy.attrs import LENGTH, ORTH
  from spacy.lang.en import English
  from spacy.tokens import Doc, Span, Token
  from spacy.util import filter_spans
  from spacy.vocab import Vocab
  from ..util import add_vecs_to_vocab
  from .test_underscore import clean_underscore
label_desc: Use image node_id 36 for calling a global function with example usage: test_sent(en_tokenizer) without return types