refactor: Add a type alias for the option_spec of directives; OptionSpec

1 files changed, 3 insertions, 2 deletions

diff --git a/sphinx/ext/todo.py b/sphinx/ext/todo.py
index e0fdd31e0..e7a2cb51a 100644
--- a/sphinx/ext/todo.py
+++ b/sphinx/ext/todo.py
@@ -27,6 +27,7 @@ from sphinx.errors import NoUri
 from sphinx.locale import _, __
 from sphinx.util import logging, texescape
 from sphinx.util.docutils import SphinxDirective, new_document
+from sphinx.util.typing import OptionSpec
 from sphinx.writers.html import HTMLTranslator
 from sphinx.writers.latex import LaTeXTranslator
 
@@ -51,7 +52,7 @@ class Todo(BaseAdmonition, SphinxDirective):
     required_arguments = 0
     optional_arguments = 0
     final_argument_whitespace = False
-    option_spec = {
+    option_spec: OptionSpec = {
         'class': directives.class_option,
         'name': directives.unchanged,
     }
@@ -110,7 +111,7 @@ class TodoList(SphinxDirective):
     required_arguments = 0
     optional_arguments = 0
     final_argument_whitespace = False
-    option_spec = {}  # type: Dict
+    option_spec: OptionSpec = {}
 
     def run(self) -> List[Node]:
         # Simply insert an empty todolist node which will be replaced later