special">=</span> <span class="identifier">method</span><span class="special">;</span> <span class="special">}</span>

    <span class="comment">/// Extract the body of the request message as a string value, checking that the content type is a MIME text type.</span>
    <span class="comment">/// A body can only be extracted once because in some cases an optimization is made where the data is 'moved' out.</span>
    <span class="identifier">pplx</span><span class="special">::</span><span class="identifier">t