d</span><span class="special">::</span><span class="identifier">vector</span></code>
            is a model of <span class="bold"><strong>Body</strong></span>. More formally, that
            a body is represented by the <span class="bold"><strong>ForwardRange</strong></span>
            concept whose <code class="computeroutput"><span class="identifier">value_type</span></code>
            is an 8-bit integer. This representation is less than ideal, considering
            that the library is built on Boos