1 files changed, 8 insertions, 0 deletions
diff --git a/sphinx/ext/githubpages.py b/sphinx/ext/githubpages.py
index b267b1740..f97c810f8 100644
--- a/sphinx/ext/githubpages.py
+++ b/sphinx/ext/githubpages.py
@@ -10,16 +10,24 @@
 """
 
 import os
+from typing import TYPE_CHECKING
 
 import sphinx
 
+if TYPE_CHECKING:
+    from typing import Any, Dict  # NOQA
+    from sphinx.application import Sphinx  # NOQA
+    from sphinx.environment import BuildEnvironment  # NOQA
+
 
 def create_nojekyll(app, env):
+    # type: (Sphinx, BuildEnvironment) -> None
     if app.builder.format == 'html':
         path = os.path.join(app.builder.outdir, '.nojekyll')
         open(path, 'wt').close()
 
 
 def setup(app):
+    # type: (Sphinx) -> Dict[unicode, Any]
     app.connect('env-updated', create_nojekyll)
     return {'version': sphinx.__display_version__, 'parallel_read_safe': True}