@Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                          .add("name", name)
                          .add("delegate", delegate)
                          .toString();
    }
Tests the specified {@code t} object.

@see DefaultRoute where this predicate is evaluated
core/src/main/java/com/linecorp/armeria/server/RoutingPredicate.java