fix some wording

Author: albertcht

src/Coroutine/Context.php

@@ -62,15 +62,15 @@ public static function removeData(string $key)
     }
 
     /**
-     * Get data by current coroutine id.
+     * Get data keys by current coroutine id.
      */
     public static function getDataKeys()
     {
         return array_keys(static::$data[static::getCoroutineId()] ?? []);
     }
 
     /**
-     * Get data by current coroutine id.
+     * Clear data by current coroutine id.
      */
     public static function clear()
     {

src/Server/Sandbox.php

@@ -326,7 +326,7 @@ public function getSnapshot()
     /**
      * Remove current request.
      */
-    protected function removeRequest()
+    public function removeRequest()
     {
         return Context::removeData('_request');
     }