def add_script(self, filename, db_nickname, sql):
        if not (db_nickname in self.connection_hashes):
            raise ScriptRunnerException("Missing connection hash for " + db_nickname)
        self.queued_scripts_collection.add_script(filename, db_nickname, sql)
- filename: the name of the script to run.  Will be logged to tracking table if needed.
dataset/ETHPy150Open jzohrab/DbMigrator/dbMigrator/migrator.py/ScriptRunner.add_script