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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_terms(self):
 ''' GROUP BY is a shortcut to only getting the first in every list of group ''' if not self.terms.empty: return self.terms if self.from_backup: self.terms = open_pickle(TERMS_BACKUP_PATH) return self.terms engine = create_engine(self.db_url) data = """ SELECT t.id as tid, t.ilx, t.label, t.definition, t.type, t.comment, t.version FROM terms t GROUP BY t.ilx """

        self.terms = pd.read_sql(data, engine)
        create_pickle(self.terms, TERMS_BACKUP_PATH)
        return self.terms