describeTemplateAlias method
Describes the template alias for a template.
May throw ThrottlingException. May throw ResourceNotFoundException. May throw UnsupportedUserEditionException. May throw InternalFailureException.
Parameter aliasName :
The name of the template alias that you want to describe. If you name a
specific alias, you describe the version that the alias points to. You can
specify the latest version of the template by providing the keyword
$LATEST in the AliasName parameter. The keyword
$PUBLISHED doesn't apply to templates.
Parameter awsAccountId :
The ID of the AWS account that contains the template alias that you're
describing.
Parameter templateId :
The ID for the template.
Implementation
Future<DescribeTemplateAliasResponse> describeTemplateAlias({
  required String aliasName,
  required String awsAccountId,
  required String templateId,
}) async {
  ArgumentError.checkNotNull(aliasName, 'aliasName');
  _s.validateStringLength(
    'aliasName',
    aliasName,
    1,
    2048,
    isRequired: true,
  );
  ArgumentError.checkNotNull(awsAccountId, 'awsAccountId');
  _s.validateStringLength(
    'awsAccountId',
    awsAccountId,
    12,
    12,
    isRequired: true,
  );
  ArgumentError.checkNotNull(templateId, 'templateId');
  _s.validateStringLength(
    'templateId',
    templateId,
    1,
    2048,
    isRequired: true,
  );
  final response = await _protocol.send(
    payload: null,
    method: 'GET',
    requestUri:
        '/accounts/${Uri.encodeComponent(awsAccountId)}/templates/${Uri.encodeComponent(templateId)}/aliases/${Uri.encodeComponent(aliasName)}',
    exceptionFnMap: _exceptionFns,
  );
  return DescribeTemplateAliasResponse.fromJson(response);
}