mypy: all of coverage/ and tests/ are checked

1 files changed, 9 insertions, 1 deletions

diff --git a/tests/modules/plugins/a_plugin.py b/tests/modules/plugins/a_plugin.py
index 0cc96e5a..2122e869 100644
--- a/tests/modules/plugins/a_plugin.py
+++ b/tests/modules/plugins/a_plugin.py
@@ -1,11 +1,19 @@
 """A plugin for tests to reference."""
 
+from __future__ import annotations
+
+from typing import Any
+
 from coverage import CoveragePlugin
+from coverage.plugin_support import Plugins
 
 
 class Plugin(CoveragePlugin):
     pass
 
 
-def coverage_init(reg, options):
+def coverage_init(
+    reg: Plugins,
+    options: Any,       # pylint: disable=unused-argument
+) -> None:
     reg.add_file_tracer(Plugin())