def test_issue1868():
    """Test Vocab.__contains__ works with int keys."""
    vocab = Vocab()
    lex = vocab["hello"]
    assert lex.orth in vocab
    assert lex.orth_ in vocab
    assert "some string" not in vocab
    int_id = vocab.strings.add("some string")
    assert int_id not in vocab
Test Vocab.__contains__ works with int keys.
spacy/tests/vocab_vectors/test_vocab_api.py