code: func (c *GameLift) DescribeMatchmaking(input *DescribeMatchmakingInput) (*DescribeMatchmakingOutput, error) {
  	req, out := c.DescribeMatchmakingRequest(input)
  	return out, req.Send()
  }
docs: // DescribeMatchmaking API operation for Amazon GameLift.
  //
  // Retrieves one or more matchmaking tickets. Use this operation to retrieve
  // ticket information, including status and--once a successful match is made--acquire
  // connection information for the resulting new game session.
  //
  // You can use this operation to track the progress of matchmaking requests
  // (through polling) as an alternative to using event notifications. See more
  // details on tracking matchmaking requests through polling or notifications
  // in StartMatchmaking.
  //
  // To request matchmaking tickets, provide a list of up to 10 ticket IDs. If
  // the request is successful, a ticket object is returned for each requested
  // ID that currently exists.
  //
  //    * StartMatchmaking
  //
  //    * DescribeMatchmaking
  //
  //    * StopMatchmaking
  //
  //    * AcceptMatch
  //
  //    * StartMatchBackfill
  //
  // 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 GameLift's
  // API operation DescribeMatchmaking for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidRequestException "InvalidRequestException"
  //   One or more parameter values in the request are invalid. Correct the invalid
  //   parameter values before retrying.
  //
  //   * ErrCodeInternalServiceException "InternalServiceException"
  //   The service encountered an unrecoverable internal failure while processing
  //   the request. Clients can retry such requests immediately or after a waiting
  //   period.
  //
  //   * ErrCodeUnsupportedRegionException "UnsupportedRegionException"
  //   The requested operation is not supported in the region specified.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/gamelift-2015-10-01/DescribeMatchmaking