Place rtype after directive

Closes #535

Author: grayjk

src/sphinx_autodoc_typehints/__init__.py

@@ -899,6 +899,8 @@ def get_insert_index(app: Sphinx, lines: list[str]) -> InsertIndexInfo | None:
             continue
         line_no = node_line_no(child)
         at = max(line_no - 2, 0) if line_no else len(lines)
+        if lines[at - 1]:  # skip if something on this line
+            break
         return InsertIndexInfo(insert_index=at, found_directive=True)
 
     # 5. Otherwise, insert at end

tests/test_integration.py

@@ -1397,15 +1397,19 @@ def docstring_with_multiline_note_after_params_epilog_replace(param: int) -> Non
     """
     mod.docstring_with_see_also()
 
-       Return type:
-          "str"
+       Test
 
        See also: more info at <https://example.com>`_.
 
+       Return type:
+          "str"
+
     """
 )
 def docstring_with_see_also() -> str:
     """
+    Test
+
     .. seealso:: more info at <https://example.com>`_.
     """
     return ""