dm45213592900704"></a>
Returns the payload size of the body.
        </p>
<h6>
<a name="beast.ref.boost__beast__http__span_body.size.h0"></a>
          <span class="phrase"><a name="beast.ref.boost__beast__http__span_body.size.synopsis"></a></span><a class="link" href="size.html#beast.ref.boost__beast__http__span_body.size.synopsis">Synopsis</a>
        </h6>
<pre class="programlisting"><span class="keyword">static</span>
<span class="identifier">std</span><span class="special">::</span><span class="identif