enh: autocompletion

backend/open_webui/utils/task.py

@@ -214,13 +214,17 @@ def emoji_generation_template(
 
 def autocomplete_generation_template(
     template: str,
-    prompt: Optional[str] = None,
+    prompt: str,
+    messages: Optional[list[dict]] = None,
     type: Optional[str] = None,
     user: Optional[dict] = None,
 ) -> str:
     template = template.replace("{{TYPE}}", type if type else "")
     template = replace_prompt_variable(template, prompt)
 
+    if messages:
+        template = replace_messages_variable(template, messages)
+
     template = prompt_template(
         template,
         **(