code: func (c *KinesisAnalyticsV2) DescribeApplication(input *DescribeApplicationInput) (*DescribeApplicationOutput, error) {
  	req, out := c.DescribeApplicationRequest(input)
  	return out, req.Send()
  }
docs: // DescribeApplication API operation for Amazon Kinesis Analytics.
  //
  // Returns information about a specific Amazon Kinesis Data Analytics application.
  //
  // If you want to retrieve a list of all applications in your account, use the
  // ListApplications operation.
  //
  // 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 Amazon Kinesis Analytics's
  // API operation DescribeApplication for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeResourceNotFoundException "ResourceNotFoundException"
  //   Specified application can't be found.
  //
  //   * ErrCodeInvalidArgumentException "InvalidArgumentException"
  //   The specified input parameter value is not valid.
  //
  //   * ErrCodeInvalidRequestException "InvalidRequestException"
  //   The request JSON is not valid for the operation.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/kinesisanalyticsv2-2018-05-23/DescribeApplication