code: public void setTicketIds(java.util.Collection<String> ticketIds) {
          if (ticketIds == null) {
              this.ticketIds = null;
              return;
          }
  
          this.ticketIds = new java.util.ArrayList<String>(ticketIds);
      }
docs: <p>
  Unique identifier for a matchmaking ticket. You can include up to 10 ID values.
  </p>
  
  @param ticketIds
  Unique identifier for a matchmaking ticket. You can include up to 10 ID values.