diff --git a/src/ResultSet.php b/src/ResultSet.php
index 2669279..cebe12a 100644
--- a/src/ResultSet.php
+++ b/src/ResultSet.php
@@ -6,14 +6,10 @@ use Amp\Iterator;
 
 interface ResultSet extends Iterator
 {
-    const FETCH_ARRAY = 0;
-    const FETCH_ASSOC = 1;
-    const FETCH_OBJECT = 2;
-
     /**
      * {@inheritdoc}
      *
-     * @param int $type Next row fetch type. Use the FETCH_* constants provided by this interface.
+     * @return array Map of row names to values.
      */
-    public function getCurrent(int $type = self::FETCH_ASSOC);
+    public function getCurrent(): array;
 }