code: func (c *Redshift) DescribeClusterTracks(input *DescribeClusterTracksInput) (*DescribeClusterTracksOutput, error) {
  	req, out := c.DescribeClusterTracksRequest(input)
  	return out, req.Send()
  }
docs: // DescribeClusterTracks API operation for Amazon Redshift.
  //
  // Returns a list of all the available maintenance tracks.
  //
  // 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 Redshift's
  // API operation DescribeClusterTracks for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidClusterTrackFault "InvalidClusterTrack"
  //   The provided cluster track name is not valid.
  //
  //   * ErrCodeUnauthorizedOperation "UnauthorizedOperation"
  //   Your account is not authorized to perform the requested operation.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/redshift-2012-12-01/DescribeClusterTracks