public GameSessionPlacement withMatchmakerData(String matchmakerData) {
        setMatchmakerData(matchmakerData);
        return this;
    }
<p>
Information on the matchmaking process for this game. Data is in JSON syntax, formatted as a string. It
identifies the matchmaking configuration used to create the match, and contains data on all players assigned to
the match, including player attributes and team assignments. For more details on matchmaker data, see <a
href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-server.html#match-server-data">Match
Data</a>.
</p>

@param matchmakerData
       Information on the matchmaking process for this game. Data is in JSON syntax, formatted as a string. It
       identifies the matchmaking configuration used to create the match, and contains data on all players
       assigned to the match, including player attributes and team assignments. For more details on matchmaker
       data, see <a
       href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-server.html#match-server-data"
       >Match Data</a>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-gamelift/src/main/java/com/amazonaws/services/gamelift/model/GameSessionPlacement.java