aws dms start-metadata-model-import
Queues an import of metadata models (database objects such as tables, views, and procedures) from your data provider into the metadata tree. AWS CLI reference
4 options Its page in the AWS CLI reference
Options
--migration-project-identifierThe migration project name or Amazon Resource Name (ARN).--originSpecifies the metadata tree to import into.--refreshSpecifies whether to refresh the selected metadata models from the data provider.--selection-rulesA JSON string that identifies the metadata models to import from the data provider.