private void addTemplatePairFeatures(int pidx, int aidx, ArrayList<String> feats) {
if (prm.pairTemplates == null) {
throw new IllegalStateException("Pair template set must be specified");
}
ext.addFeatures(prm.pairTemplates, LocalObservations.newPidxCidx(pidx, aidx), feats);
}
private void addTemplateSoloFeatures(int idx, ArrayList<String> feats) {
if (prm.soloTemplates == null) {
throw new IllegalStateException("Solo template set must be specified");
}
ext.addFeatures(prm.soloTemplates, LocalObservations.newPidx(idx), feats);
}