Implement OrgDoc .shallow_tags .

org_rw/org_rw.py

@@ -2284,6 +2284,10 @@ class OrgDoc:
                 return kw.value.strip(':').split(':')
         return []
 
+    @property
+    def shallow_tags(self) -> list[str]:
+        return self.tags
+
     ## Querying
     def get_links(self):
         for headline in self.headlines:

tests/test_org.py

@@ -889,6 +889,23 @@ class TestSerde(unittest.TestCase):
         h1_2_h2 = h1_2.children[0]
         self.assertEqual(sorted(h1_2_h2.tags), ['filetag', 'otherh1tag', 'otherh2tag'])
 
+    def test_shallow_tag_property_read_13(self):
+        with open(os.path.join(DIR, "13-tags.org")) as f:
+            orig = f.read()
+            doc = loads(orig)
+
+        self.assertEqual(doc.shallow_tags, ['filetag'])
+
+        h1_1, h1_2 = doc.getTopHeadlines()
+        self.assertEqual(sorted(h1_1.shallow_tags), ['h1tag'])
+        self.assertEqual(sorted(h1_2.shallow_tags), ['otherh1tag'])
+
+        h1_1_h2 = h1_1.children[0]
+        self.assertEqual(sorted(h1_1_h2.shallow_tags), ['h2tag'])
+
+        h1_2_h2 = h1_2.children[0]
+        self.assertEqual(sorted(h1_2_h2.shallow_tags), ['otherh2tag'])
+
 def print_tree(tree, indentation=0, headline=None):
     for element in tree:
         print(" " * indentation * 2, "EL:", element)