_t&gt;` would do.  So why this Default_init_allocator then?  Indeed!  You should use `Blob`</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> * instead of `vector&lt;uint8_t&gt;`; you&#39;ll get quite a few goodies as a result.  The problem: `Blob` always</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> * heap-allocates.  Update: But, happily, now `flow::util::Basic_bl