code: @Override
      public CreateRoomResult createRoom(CreateRoomRequest request) {
          request = beforeClientExecution(request);
          return executeCreateRoom(request);
      }
docs: <p>
  Creates a room with the specified details.
  </p>
  
  @param createRoomRequest
  @return Result of the CreateRoom operation returned by the service.
  @throws AlreadyExistsException
  The resource being created already exists.
  @throws LimitExceededException
  You are performing an action that would put you beyond your account's limits.
  @sample AmazonAlexaForBusiness.CreateRoom
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/alexaforbusiness-2017-11-09/CreateRoom" target="_top">AWS
  API Documentation</a>