diff --git a/src/Util/Stream/DataStream.php b/src/Util/Stream/DataStream.php
index 746f5eb..d5df6d2 100644
--- a/src/Util/Stream/DataStream.php
+++ b/src/Util/Stream/DataStream.php
@@ -541,10 +541,12 @@ public function eachToArray(callable $func, array $arr = []): array
     }
 
     /**
+     * Each item to map
+     *
      * @param callable(array|mixed): array{string, mixed} $func
      * @param array $map
      *
-     * @return array<string, mixed>
+     * @return array<string, mixed> return the map key and value
      */
     public function eachToMap(callable $func, array $map = []): array
     {