code: @Override
      public DescribeAliasResult describeAlias(DescribeAliasRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeAlias(request);
      }
docs: <p>
  Retrieves properties for an alias. This operation returns all alias metadata and settings. To get an alias's
  target fleet ID only, use <code>ResolveAlias</code>.
  </p>
  <p>
  To get alias properties, specify the alias ID. If successful, the requested alias record is returned.
  </p>
  <ul>
  <li>
  <p>
  <a>CreateAlias</a>
  </p>
  </li>
  <li>
  <p>
  <a>ListAliases</a>
  </p>
  </li>
  <li>
  <p>
  <a>DescribeAlias</a>
  </p>
  </li>
  <li>
  <p>
  <a>UpdateAlias</a>
  </p>
  </li>
  <li>
  <p>
  <a>DeleteAlias</a>
  </p>
  </li>
  <li>
  <p>
  <a>ResolveAlias</a>
  </p>
  </li>
  </ul>
  
  @param describeAliasRequest
  Represents the input for a request action.
  @return Result of the DescribeAlias operation returned by the service.
  @throws UnauthorizedException
  The client failed authentication. Clients should not retry such requests.
  @throws InvalidRequestException
  One or more parameter values in the request are invalid. Correct the invalid parameter values before
  retrying.
  @throws NotFoundException
  A service resource associated with the request could not be found. Clients should not retry such
  requests.
  @throws InternalServiceException
  The service encountered an unrecoverable internal failure while processing the request. Clients can retry
  such requests immediately or after a waiting period.
  @sample AmazonGameLift.DescribeAlias
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/gamelift-2015-10-01/DescribeAlias" target="_top">AWS API
  Documentation</a>