Word arithmetic operations
    If a word is not in the vocabulary, KeyError will be raised.

    :param list positive: a list of words to add
    :param list negative: a list of words to substract

    :return: the cosine similarity between the two word vectors

def most_similar_cosmul(positive: List[str], negative: List[str]):
    """
    Word arithmetic operations
    If a word is not in the vocabulary, KeyError will be raised.

    :param list positive: a list of words to add
    :param list negative: a list of words to substract

    :return: the cosine similarity between the two word vectors
    """

    return _MODEL.most_similar_cosmul(positive=positive, negative=negative)