Update src/apify_client/clients/resource_clients/run.py

Co-authored-by: Vlada Dusek <[email protected]>

Author: Jkuzz

src/apify_client/clients/resource_clients/run.py

@@ -489,7 +489,7 @@ async def charge(
             dict: Status and message of the charge event.
         """
         if not event_name:
-            raise ValueError('eventName is required for charging an event')
+            raise ValueError('event_name is required for charging an event')
 
         response = await self.http_client.call(
             url=self._url('charge'),