@Override
    public String toString() {
        return "FederationOptions{" +
                "optional=" + optional +
                ", timeoutInMilliseconds=" + timeoutInMilliseconds +
                ", useByDefault=" + useByDefault +
                '}';
    }
Returns the amount of time we should allow this target execution to run, or -1 to use default
container-search/src/main/java/com/yahoo/search/searchchain/model/federation/FederationOptions.java