title: get_in for nested list & struct in elixir
body: <p>I have a structure</p>
  
  <pre><code>s = [
    a: %Bla{
     b: "c"
    }
  ]
  </code></pre>
  
  <p>I want to take <code>c</code> value from it. I'm trying to do</p>
  
  <pre><code>get_in(s, [:a, :b])
  </code></pre>
  
  <p>But it's not designed to take value from the struct. Is there any analogue which allows me to fetch <code>c</code> from the list with nested struct?</p>