chore: ExecutionEvent.asdict adds the event_type field which is t…

…he event class name

docs/changelog.rst

@@ -4,6 +4,10 @@ Changelog
 `Unreleased`_ - TBD
 -------------------
 
+**Changed**
+
+- ``ExecutionEvent.asdict`` adds the ``event_type`` field which is the event class name.
+
 `3.9.0`_ - 2021-06-07
 ---------------------
 

src/schemathesis/cli/debug.py

@@ -14,7 +14,6 @@ class DebugOutputHandler(EventHandler):
     def handle_event(self, context: ExecutionContext, event: events.ExecutionEvent) -> None:
         stream = self.file_handle.open()
         data = event.asdict()
-        data["event_type"] = event.__class__.__name__
         stream.write(json.dumps(data))
         stream.write("\n")
 

src/schemathesis/runner/events.py

@@ -1,6 +1,6 @@
 import threading
 import time
-from typing import Dict, List, Optional, Union
+from typing import Any, Dict, List, Optional, Union
 
 import attr
 from requests import exceptions
@@ -16,7 +16,11 @@
 class ExecutionEvent:
     """Generic execution event."""
 
-    asdict = attr.asdict
+    def asdict(self, **kwargs: Any) -> Dict[str, Any]:
+        data = attr.asdict(self, **kwargs)
+        # An internal tag for simpler type identification
+        data["event_type"] = self.__class__.__name__
+        return data
 
 
 @attr.s(slots=True)  # pragma: no mutate