{{access}} helper not working inside {{get}}

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1

I am am trying to use {{access}} inside a post layout but its not working inside the {{get}} helper.
Is there a limitation to use {{access}} inside {{get}}?

Example code :

      {{#get "posts" filter="tag:[hash-lesson]+tag:{{slug}}" order="published_at asc" include="tags,authors"  limit="all"}}
      {{#if posts}}
      {{#foreach posts }}
      {{#if access}}
      <a href="{{url}}">{{> lessonbox}}</a>
      {{else}}
      <a class="modal-open" href="#/portal/signup"> {{> lessonbox}} </a>
      {{/if}}
      {{/foreach}}
      {{/if}}
      {{/get}}