>
     <td class="fn _2">
      Strictly speaking, a <code class="fsharp"><a href="../reference/charstream.html#CharStream"><span class="ci">CharStream</span></a><span
      class="cp">&lt;</span><span class="ctv">'a</span><span class="cp">&gt;</span></code> instance has a little more publically observable mutable
      state than the one that is also exposed through the <code class="fsharp"><a href="../reference/charstream.html#CharStream_1.members.State"><span
      class="ci">State</span></a></code> prop