this.ignoringElementContentWhitespace = ignoringElementContentWhitespace;
    }

    /**
     * Returns the validating.
     *
     * @return the validating
     */
    public boolean isValidating() {
        return validating;
    }

    /**
     * Sets the validating.
     *
     * @param validating the validating to set
     */
    public void setValidating(final boolean validating) {

                // memoryRegister.deregisterMemory();

                log.debug("DiSNI memory region invalidated");
            } catch (Exception e) {
                log.warn("Error invalidating DiSNI memory region", e);
            } finally {
                memoryRegister = null;
                valid = false;
            }
        }
    }

    @Override
    protected int generateLocalKey() {

        }
    }

    /**
     * Invalidate read cache for a file path
     *
     * @param path file path
     */
    private void invalidateReadCache(String path) {
        log.debug("Invalidating read cache for path: {}", path);

        WeakReference<SmbFile> ref = fileCache.get(path);
        if (ref != null) {
            SmbFile file = ref.get();
            if (file != null) {
                try {

        if (StringUtil.isBlank(pipeline)) {
            return OptionalThing.empty();
        }
        return OptionalThing.of(pipeline);
    }

    /**
     * Refreshes the crawling configuration cache by invalidating all cached entries.
     * This forces the next access to reload configurations from the underlying services.
     */
    public void refresh() {
        crawlingConfigCache.invalidateAll();
    }

    /**

      public boolean hasNext() {
        /*
         * Don't store a new Iterator until we know the user can't remove() the last returned
         * element anymore. Otherwise, when we remove from the old iterator, we may be invalidating
         * the new one. The result is a ConcurrentModificationException or other bad behavior.
         *
         * (If we decide that we really, really hate allocating two Iterators per cycle instead of

## 0.80.0

### Breaking Changes - Fixes

* 🐛 Fix `response_model` not invalidating `None`. PR [#2725](https://github.com/tiangolo/fastapi/pull/2725) by [@hukkin](https://github.com/hukkin).