tatus.t</a> Lwt.t</span></code></dt><dd><p><code>bidirectional_streaming</code> is the type for an rpc where both the client and server can send multiple messages.</p></dd></dl><dl><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type</span> t</code><code> = </code><table class="variant"><tr id="type-t.Unary" class="anchored"><td class="def constructor"><a href="#type-t.Unary" class="anchor"></a><code>| </code><code><span class="constructor">Unary</span> <sp