" id="val-update_sources"><a href="#val-update_sources" class="anchor"></a><code><span class="keyword">val</span> update_sources : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="Sources/index.html#type-t">Sources.t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-update_sinks"><a href="#val-update_sinks" class="anchor"></a><code><span class="keyword">val</span> update_sinks : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a 