l" href="classipc_1_1session_1_1Session__base.html#a26d038e14e3c0e461e76de88c4ce76c5" title="The (internally used) session master channel is a transport::struc::Channel of this concrete type.">Master_structured_channel</a>, from its own <a class="el" href="classipc_1_1session_1_1Session__base_1_1Graceful__finisher.html#af441f45ce1ed7b890c3ab77d959f8830" title="The reason Graceful_finisher exists, this method must be called at the start of *_session_impl dtor; ...">on_dtor_start()</a>. Naturally, we do the s