aml</a> &#x00BB; EzPGUpdater</nav><h1>Module <code>EzPGUpdater</code></h1></header><dl><dt class="spec value" id="val-main"><a href="#val-main" class="anchor"></a><code><span class="keyword">val</span> main : <span>?&#8288;downgrades:<span><span>(int * <span>string list</span>)</span> list</span></span> <span>&#45;&gt;</span> <span>upgrades:<span><span>(int * <span>(<span>unit PGOCaml.t</span> <span>&#45;&gt;</span> int <span>&#45;&gt;</span> unit)</span>)</span> list</span></span> <span>&#45;&gt;</span> st