diff --git a/src/caosadvancedtools/crawler.py b/src/caosadvancedtools/crawler.py
index ea7527bbd746334baa337926c6074e82c6610949..5d91d85cbbbff5b6f64ce9a9de1f29ca603d3b8a 100644
--- a/src/caosadvancedtools/crawler.py
+++ b/src/caosadvancedtools/crawler.py
@@ -66,10 +66,25 @@ def separated(text):
     return "-"*60 + "\n" + text
 
 
-def apply_list_of_updates(to_be_updated, update_flags,
+def apply_list_of_updates(to_be_updated, update_flags={},
                           update_cache=None, run_id=None):
-    """
-    Updates the to_be_updated Container, i.e. pushes the changes to CaosDB
+    """Updates the `to_be_updated` Container, i.e., pushes the changes to CaosDB
+    after removing possible duplicates. If a chace is provided, uauthorized
+    updates can be cached for further authorization.
+
+    Parameters:
+    -----------
+    to_be_updated : db.Container
+        Container with the entities that will be updated.
+    update_flags : dict, optional
+        Dictionary of CaosDB server flags that will be used for the
+        update. Default is an empty dict.
+    update_cache : UpdateCache or None, optional
+        Cache in which the intended updates will be stored so they can be
+        authorized afterwards. Default is None.
+    run_id : String or None, optional
+        Id with which the pending updates are cached. Only meaningful if
+        `update_cache` is provided. Default is None.
     """
 
     if len(to_be_updated) == 0:
@@ -90,9 +105,10 @@ def apply_list_of_updates(to_be_updated, update_flags,
 
     baseurl = db.configuration.get_config()["Connection"]["url"]
 
+    def make_clickable(txt, id):
+        return "<a href='{}/Entity/{}'>{}</a>".format(baseurl, id, txt)
+
     for el in to_be_updated:
-        def make_clickable(txt, id):
-            return "<a href='{}/Entity/{}'>{}</a>".format(baseurl, id, txt)
         info += str("\t" + make_clickable(el.name, el.id)
                     if el.name is not None
                     else "\t" + make_clickable(str(el.id), el.id))