Added some introspection on configured paces.

kytos/core/pacing.py

@@ -167,6 +167,11 @@ def hit(self, action_name: str, *keys):
 
             time.sleep(sleep_time)
 
+    def is_configured(self, action_name):
+        """
+        Check if the given action has been configured.
+        """
+        return action_name in self.pace_config
 
 class PacerWrapper:
     """
@@ -215,5 +220,13 @@ async def ahit(self, action_name: str, *keys):
             *keys
         )
 
+    def is_configured(self, action_name: str):
+        """
+        Check if the given action has been configured.
+        """
+        return self.pacer.is_configured(
+            self._localized_key(action_name)
+        )
+
     def _localized_key(self, key):
         return f"{self.namespace}.{key}"