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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 create_dbsnapshot(self, snapshot_id, dbinstance_id):
 """ Create a new DB snapshot. :type snapshot_id: string :param snapshot_id: The identifier for the DBSnapshot :type dbinstance_id: string :param dbinstance_id: The source identifier for the RDS instance from which the snapshot is created. :rtype: :class:`boto.rds.dbsnapshot.DBSnapshot` :return: The newly created DBSnapshot """

        params = {'DBSnapshotIdentifier' : snapshot_id,
                  'DBInstanceIdentifier' : dbinstance_id}
        return self.get_object('CreateDBSnapshot', params, DBSnapshot)