document what the method does

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

diff --git a/lib/private/Authentication/Token/IProvider.php b/lib/private/Authentication/Token/IProvider.php
index 6260555470dd15f9e3abf8f7bd3f31329266be74..ce14a5880c55f0d2220aa56fdd94d307c4f6f7d9 100644 (file)
--- a/lib/private/Authentication/Token/IProvider.php
+++ b/lib/private/Authentication/Token/IProvider.php
@@ -53,6 +53,8 @@ interface IProvider {
        public function getToken($tokenId) ;
 
        /**
+        * Duplicate an existing session token
+        *
         * @param string $oldSessionId
         * @param string $sessionId
         * @throws InvalidTokenException