untagResource method
Removes the tags associated with the keys that are provided in the query.
May throw NotFoundException. May throw BadRequestException. May throw InternalServerErrorException.
Parameter resourceArn :
The Amazon Resource Name (ARN) that uniquely identifies the resource that's associated with the tags.
Parameter tagKeys :
Tag keys must be unique for a given cluster. In addition, the following restrictions apply:
- 
Each tag key must be unique. If you add a tag with a key that's already in use, your new tag overwrites the existing key-value pair. 
- 
You can't start a tag key with aws: because this prefix is reserved for use by AWS. AWS creates tags that begin with this prefix on your behalf, but you can't edit or delete them. 
- 
Tag keys must be between 1 and 128 Unicode characters in length. 
- 
Tag keys must consist of the following characters: Unicode letters, digits, white space, and the following special characters: _ . / = + - @. 
Implementation
Future<void> untagResource({
  required String resourceArn,
  required List<String> tagKeys,
}) async {
  ArgumentError.checkNotNull(resourceArn, 'resourceArn');
  ArgumentError.checkNotNull(tagKeys, 'tagKeys');
  final $query = <String, List<String>>{
    'tagKeys': tagKeys,
  };
  await _protocol.send(
    payload: null,
    method: 'DELETE',
    requestUri: '/v1/tags/${Uri.encodeComponent(resourceArn)}',
    queryParams: $query,
    exceptionFnMap: _exceptionFns,
  );
}