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  <section class="docstring">

      <div class="specs">

          <pre translate="no"><span class="attribute">-spec</span> call(ServerRef, Message) -> Reply
              when ServerRef :: <a href="#t:server_ref/0">server_ref</a>(), Message :: <a href="https://www.erlang.org/doc/apps/erts/erlang.html#t:term/0">term</a>(), Reply :: 