public void setGameSessionArn(String gameSessionArn) {
        this.gameSessionArn = gameSessionArn;
    }
<p>
A unique identifier for the game session. Use the game session ID.
</p>

@param gameSessionArn
       A unique identifier for the game session. Use the game session ID.
aws-java-sdk-gamelift/src/main/java/com/amazonaws/services/gamelift/model/GameSessionConnectionInfo.java