code: func (c *ConfigService) DescribeAggregationAuthorizations(input *DescribeAggregationAuthorizationsInput) (*DescribeAggregationAuthorizationsOutput, error) {
  	req, out := c.DescribeAggregationAuthorizationsRequest(input)
  	return out, req.Send()
  }
docs: // DescribeAggregationAuthorizations API operation for AWS Config.
  //
  // Returns a list of authorizations granted to various aggregator accounts and
  // regions.
  //
  // Returns awserr.Error for service API and SDK errors. Use runtime type assertions
  // with awserr.Error's Code and Message methods to get detailed information about
  // the error.
  //
  // See the AWS API reference guide for AWS Config's
  // API operation DescribeAggregationAuthorizations for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidParameterValueException "InvalidParameterValueException"
  //   One or more of the specified parameters are invalid. Verify that your parameters
  //   are valid and try again.
  //
  //   * ErrCodeInvalidNextTokenException "InvalidNextTokenException"
  //   The specified next token is invalid. Specify the nextToken string that was
  //   returned in the previous response to get the next page of results.
  //
  //   * ErrCodeInvalidLimitException "InvalidLimitException"
  //   The specified limit is outside the allowable range.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/config-2014-11-12/DescribeAggregationAuthorizations