Autogenerated type safety parameterisation of all methods

webserver/handlers/metrics.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import tornado
 from prometheus_client import CONTENT_TYPE_LATEST
 
@@ -7,7 +9,7 @@ from core.prometheus_metrics_handler import get_metrics
 class PrometheusMetricsHandler(tornado.web.RequestHandler):
     """Handler for Prometheus metrics endpoint"""
 
-    def get(self):
+    def get(self) -> None:
         self.write(get_metrics())
         self.set_status(200)
         self.set_header("Content-Type", CONTENT_TYPE_LATEST)