><b>where:</b></p>
<dl class="variablelist">
<dt><span class="term">Iterator</span></dt>
<dd><p>
                  This is the type of the iterator used to access the underlying
                  input stream. It defaults to a plain <code class="computeroutput"><span class="keyword">char</span>
                  <span class="keyword">const</span><span class="special">*</span></code>.
                </p></dd>
<dt><span class="term">AttributeTypes</span></dt>
<dd><p>
                  This is either a mpl se