>Same as <a href="index.html#val-result_fold_single_column_rows"><code>result_fold_single_column_rows</code></a> but asserts that at most one row is returned.</p></dd></dl><dl><dt class="spec value" id="val-result_unit"><a href="#val-result_unit" class="anchor"></a><code><span class="keyword">val</span> result_unit : <span>?&#8288;finalize:bool</span> <span>&#45;&gt;</span> Sqlite3.db <span>&#45;&gt;</span> <span>log:string</span> <span>&#45;&gt;</span> Sqlite3.stmt <span>&#45;&gt;</span> unit</code></dt><d