title: Less CSS: is it possible to access a constant in a parametric mixin
body: <p>Let me explain what I mean by "constant" because I'm unsure of the correct terminology.</p>
  
  <pre><code>.state(pressed) {
      // Do something inside my mixin with "pressed"
  }
  </code></pre>
  
  <p>In the example above, "pressed" is the constant - it's not a variable and cannot change.</p>
  
  <p>The question is can I reference a pointer to this keyword inside the mixin?</p>
  
  <pre><code>.state(pressed) {
      .call-another-mixin(// use "pressed" without explicitly typing it //);
  }
  </code></pre>