d4.html" title="http::chunk_header::chunk_header (4 of 5 overloads)">chunk_header</a><span class="special">(</span>
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span>
    <span class="identifier">ChunkExtensions</span><span class="special">&amp;&amp;</span> <span class="identifier">extensions</span><span class="special">,</span>
    <span class="identifier">Allocator</span> <span clas