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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 find(self, search_term: str) -> List[Commodity]: """ Searches for security by part of the name """

        query = (
            self.query
            .filter(Commodity.mnemonic.like('%' + search_term + '%') |
                    Commodity.fullname.like('%' + search_term + '%'))
        )
        return query.all()