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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_keywords(self, entry):
 """ get list of models.Keyword objects from XML node entry :param entry: XML node entry :return: list of :class:`pyuniprot.manager.models.Keyword` objects """

        keyword_objects = []

        for keyword in entry.iterfind("./keyword"):
            identifier = keyword.get('id')
            name = keyword.text
            keyword_hash = hash(identifier)

            if keyword_hash not in self.keywords:
                self.keywords[keyword_hash] = models.Keyword(**{'identifier': identifier, 'name': name})

            keyword_objects.append(self.keywords[keyword_hash])

        return keyword_objects