def test_issue1799():
    """Test sentence boundaries are deserialized correctly, even for
    non-projective sentences."""
    heads_deps = numpy.asarray(
        [
            [1, 397],
            [4, 436],
            [2, 426],
            [1, 402],
            [0, 8206900633647566924],
            [18446744073709551615, 440],
            [18446744073709551614, 442],
        ],
        dtype="uint64",
    )
    doc = Doc(Vocab(), words="Just what I was looking for .".split())
    doc.vocab.strings.add("ROOT")
    doc = doc.from_array([HEAD, DEP], heads_deps)
    assert len(list(doc.sents)) == 1
Test sentence boundaries are deserialized correctly, even for
    non-projective sentences.
spacy/tests/serialize/test_serialize_doc.py