core/src/main/java/org/trimou/handlebars/CacheHelper.java
public void invalidateFragments(final String keyPart) {
        if (fragments == null || keyPart == null) {
            return;
        }
        fragments.invalidate(fragmentKey -> fragmentKey.getKey().contains(keyPart));
    }
public void invalidateFragments(final String keyPart) {
        if (fragments == null || keyPart == null) {
            return;
        }
        fragments.invalidate(fragmentKey -> fragmentKey.getKey().contains(keyPart));
    }
Invalidate the cache fragments whose key contains the given part of the
key.

@param keyPart