Deletes all versions of the slot type, including the "$LATEST"version.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/lex-models/delete-slot-type.html
| aws lex-models delete-slot-type \ |
| Step 4 (Optional): Clean up - Amazon Lex : http://docs.aws.amazon.com/lex/latest/dg/gs-cli-clean-up.html |