Properties of the SimpleSmoothScrollDirective directive marks them as private

[soyabrahamdev]

Hello, I am working in this way, as in the documentation you present:
<a class="nav-link" href="javascript:void(0);" SimpleSmoothScroll [scrollTo]="'servicios'">Servicios</a>
And I get, in the Angular console, an error of this style:

Property 'scrollTo' is private and only accessible within class 'SimpleSmoothScrollDirective'.

Also when using this example:
<a href="#div2" SimpleSmoothScroll [showHash]="true">Click!!</a>
Error:

Property 'showHash' is private and only accessible within class 'SimpleSmoothScrollDirective'.