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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 last_executed_query(self, cursor, sql, params):
 """ Returns a string of the query last executed by the given cursor, with placeholders replaced with actual values. `sql` is the raw query containing placeholders, and `params` is the sequence of parameters. These are used by default, but this method exists for database backends to provide a better implementation according to their own quoting schemes. """

        return super(DatabaseOperations, self).last_executed_query(cursor, cursor.last_sql, cursor.last_params)