@Override
    public final @NonNull Collection<@NonNull ComponentPreprocessor<C>> preprocessors() {
        return Collections.unmodifiableCollection(this.componentPreprocessors);
    }
Preprocess command input.

<p>This will immediately forward any failed component parse results.
If none fails, a {@code true} result will be returned.</p>

@param context Command context
@param input   Remaining command input. None will be popped
@return parsing error, or argument containing {@code true}
cloud-core/src/main/java/org/incendo/cloud/component/CommandComponent.java