title: What is that "arg00" in the type of LexBuffer<char>.LexemeString?
body: <p>What is that &quot;arg00&quot; in the type of <code>Fsharp.Text.Lexing</code>'s <code>LexBuffer&lt;char&gt;.LexemeString</code>?</p>
  <pre><code>&gt; LexBuffer&lt;char&gt;.LexemeString;;
  val it : arg00:LexBuffer&lt;char&gt; -&gt; string
  </code></pre>