code: public void setConfigurations(java.util.Collection<MatchmakingConfiguration> configurations) {
          if (configurations == null) {
              this.configurations = null;
              return;
          }
  
          this.configurations = new java.util.ArrayList<MatchmakingConfiguration>(configurations);
      }
docs: <p>
  Collection of requested matchmaking configuration objects.
  </p>
  
  @param configurations
  Collection of requested matchmaking configuration objects.