@Override
    public boolean equals(Object o) {
        if (o == this) return true;
        if (o instanceof Significance other) {
            if ( ! Objects.equals(this.useModel, other.useModel)) return false;
            return true;
        }
        return false;
    }
The type representing the property arguments consumed by this
container-search/src/main/java/com/yahoo/search/query/ranking/Significance.java