From de1a1bc89b04dec9127d0482561009d9d919c9e0 Mon Sep 17 00:00:00 2001
From: Arthit Suriyawongkul <arthit@gmail.com>
Date: Tue, 12 Dec 2023 08:18:05 +0000
Subject: [PATCH] model: str --> model: Union[str, None]

---
 pythainlp/parse/core.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pythainlp/parse/core.py b/pythainlp/parse/core.py
index 1dcb9e4da..5dfe6aa8f 100644
--- a/pythainlp/parse/core.py
+++ b/pythainlp/parse/core.py
@@ -10,7 +10,10 @@
 
 
 def dependency_parsing(
-    text: str, model: str = "", tag: str = "str", engine: str = "esupar"
+    text: str,
+    model: Union[str, None] = None,
+    tag: str = "str",
+    engine: str = "esupar",
 ) -> Union[List[List[str]], str]:
     """
     Dependency Parsing