@classmethod
def find_one(cls, *args, **kwargs):
    """Get a single document from the database and return it as a Document.

        Any additionnal arguments will be passed to Collection.find_one
        """
    the_one = cls.col.find_one(*args, **kwargs)
    if the_one:
        return cls(the_one, use_defaults=False)
    return the_one
