public enum ComparisonOp

Description 

Comparison Operator for this attribute.
Check more detail in EOS document.

using SynicSugar.MatchMake;

public class LobbyCondition : MonoBehaviour {
    void SetLobbyConditions(){
        AttributeData attribute = new AttributeData();
        attribute.ComparisonOperator = ComparisonOp.Equal;
    }
}