    method that receives a <a class="link" href="../detailed/utilities.html#log.detailed.utilities.setup.settings" title="Library initialization from a settings container">settings
          subsection</a> and returns a pointer to the initialized sink. The factory
          is registered for a specific destination (see the <a class="link" href="../detailed/utilities.html#log.detailed.utilities.setup.settings" title="Library initialization from a settings container">settings
          file description</a>), 