@Override
    public String toString() {

        return "LogicalStateElement{" +
                "streamStateElement1=" + streamStateElement1 +
                ", type=" + type +
                ", streamStateElement2=" + streamStateElement2 +
                '}';
    }
Logical state element used in pattern to handle logical operations
modules/siddhi-query-api/src/main/java/io/siddhi/query/api/execution/query/input/state/LogicalStateElement.java