OptionalallowOptionalmaterializationThe ID of the materialization set to delete.
OptionalrequestIdempotency token for the request. A second request carrying a token that has already been used returns the operation the first one created, whatever state it reached, and deletes nothing further. The token is not checked against the rest of the request. Omit it and each request deletes independently.
Return success instead of NOT_FOUND when the set does not exist, so a repeated destroy is idempotent.