anguage</code> (see below). More on linters here: <a href="http://fbinfer.com/docs/linters.html">http://fbinfer.com/docs/linters.html</a>.</li></ol></dd></dl><dl><dt class="spec value" id="val-al_callback_ref"><a href="#val-al_callback_ref" class="anchor"></a><code><span class="keyword">val</span> al_callback_ref : <span><span>(<a href="../ClangFrontend/CFrontend_config/index.html#type-translation_unit_context">ClangFrontend.CFrontend_config.translation_unit_context</a> <span>&#45;&gt;</span> <a href="../AT